# Physics equations/04-Dynamics: Force and Newton's Laws/Q:sled/Testbank

## a04DynForce Newton_sled_v1

A sled of mass 5.4 kg is at rest on a rough surface. A string pulls with a tension of 43.4N at an angle of 31 degrees above the horizontal. What is the magnitude of the friction?

 a) 24.46 N. b) 28.13 N. c) 32.35 N. d) 37.2 N. e) 42.78 N.

copies
```===2===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.7 kg is at rest on a rough surface.  A string pulls with a tension of 41.6N at an angle of 34 degress above the horizontal.  What is the magnitude of the friction?}
-a) 19.72 N.
-b) 22.68 N.
-c) 26.08 N.
-d) 29.99 N.
+e) 34.49 N.
===3===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.3 kg is at rest on a rough surface.  A string pulls with a tension of 46.8N at an angle of 56 degress above the horizontal.  What is the magnitude of the friction?}
-a) 17.21 N.
-b) 19.79 N.
-c) 22.76 N.
+d) 26.17 N.
-e) 30.1 N.
===4===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.9 kg is at rest on a rough surface.  A string pulls with a tension of 43.6N at an angle of 38 degress above the horizontal.  What is the magnitude of the friction?}
-a) 19.64 N.
-b) 22.59 N.
-c) 25.98 N.
-d) 29.88 N.
+e) 34.36 N.
===5===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.1 kg is at rest on a rough surface.  A string pulls with a tension of 48N at an angle of 48 degress above the horizontal.  What is the magnitude of the friction?}
-a) 24.29 N.
-b) 27.93 N.
+c) 32.12 N.
-d) 36.94 N.
-e) 42.48 N.
===6===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.9 kg is at rest on a rough surface.  A string pulls with a tension of 43.7N at an angle of 41 degress above the horizontal.  What is the magnitude of the friction?}
-a) 24.94 N.
-b) 28.68 N.
+c) 32.98 N.
-d) 37.93 N.
-e) 43.62 N.
===7===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.8 kg is at rest on a rough surface.  A string pulls with a tension of 42.3N at an angle of 40 degress above the horizontal.  What is the magnitude of the friction?}
-a) 21.31 N.
-b) 24.5 N.
-c) 28.18 N.
+d) 32.4 N.
-e) 37.26 N.
===8===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.1 kg is at rest on a rough surface.  A string pulls with a tension of 41.2N at an angle of 42 degress above the horizontal.  What is the magnitude of the friction?}
-a) 23.15 N.
-b) 26.62 N.
+c) 30.62 N.
-d) 35.21 N.
-e) 40.49 N.
===9===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.4 kg is at rest on a rough surface.  A string pulls with a tension of 46.6N at an angle of 38 degress above the horizontal.  What is the magnitude of the friction?}
+a) 36.72 N.
-b) 42.23 N.
-c) 48.56 N.
-d) 55.85 N.
-e) 64.23 N.
===10===
{<!--a04DynForce Newton_sled_1-->A sled of mass 5.5 kg is at rest on a rough surface.  A string pulls with a tension of 46.8N at an angle of 40 degress above the horizontal.  What is the magnitude of the friction?}
-a) 27.11 N.
-b) 31.17 N.
+c) 35.85 N.
-d) 41.23 N.
-e) 47.41 N.
```

## a04DynForce Newton_sled_v1

A sled of mass 5.3 kg is at rest on a rough surface. A string pulls with a tension of 44.9N at an angle of 57 degrees above the horizontal. What is the normal force?

 a) 8.17 N. b) 9.39 N. c) 10.8 N. d) 12.42 N. e) 14.28 N.

copies
```===2===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.4 kg is at rest on a rough surface.  A string pulls with a tension of 40.4N at an angle of 39 degress above the horizontal.  What is the normal force?}
+a) 27.5 N.
-b) 31.62 N.
-c) 36.36 N.
-d) 41.82 N.
-e) 48.09 N.
===3===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.3 kg is at rest on a rough surface.  A string pulls with a tension of 43N at an angle of 55 degress above the horizontal.  What is the normal force?}
-a) 10.99 N.
-b) 12.64 N.
-c) 14.54 N.
+d) 16.72 N.
-e) 19.22 N.
===4===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.7 kg is at rest on a rough surface.  A string pulls with a tension of 40.1N at an angle of 42 degress above the horizontal.  What is the normal force?}
+a) 29.03 N.
-b) 33.38 N.
-c) 38.39 N.
-d) 44.15 N.
-e) 50.77 N.
===5===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.5 kg is at rest on a rough surface.  A string pulls with a tension of 41.3N at an angle of 34 degress above the horizontal.  What is the normal force?}
-a) 26.79 N.
+b) 30.81 N.
-c) 35.43 N.
-d) 40.74 N.
-e) 46.85 N.
===6===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.9 kg is at rest on a rough surface.  A string pulls with a tension of 45.6N at an angle of 36 degress above the horizontal.  What is the normal force?}
-a) 23.45 N.
-b) 26.97 N.
+c) 31.02 N.
-d) 35.67 N.
-e) 41.02 N.
===7===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.8 kg is at rest on a rough surface.  A string pulls with a tension of 41.9N at an angle of 42 degress above the horizontal.  What is the normal force?}
-a) 18.94 N.
-b) 21.78 N.
-c) 25.05 N.
+d) 28.8 N.
-e) 33.12 N.
===8===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.7 kg is at rest on a rough surface.  A string pulls with a tension of 43.9N at an angle of 50 degress above the horizontal.  What is the normal force?}
-a) 16.81 N.
-b) 19.33 N.
+c) 22.23 N.
-d) 25.57 N.
-e) 29.4 N.
===9===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.2 kg is at rest on a rough surface.  A string pulls with a tension of 45.3N at an angle of 59 degress above the horizontal.  What is the normal force?}
-a) 10.55 N.
+b) 12.13 N.
-c) 13.95 N.
-d) 16.04 N.
-e) 18.45 N.
===10===
{<!--a04DynForce Newton_sled_2-->A sled of mass 5.8 kg is at rest on a rough surface.  A string pulls with a tension of 42.5N at an angle of 51 degress above the horizontal.  What is the normal force?}
-a) 13.61 N.
-b) 15.66 N.
-c) 18 N.
-d) 20.71 N.
+e) 23.81 N.
```

## a04DynForce Newton_sled_v1

A sled of mass 5.9 kg is at rest on a perfectly smooth surface. A string pulls with a tension of 47.3N at an angle of 48 degrees above the horizontal. How long will it take to reach a speed of 10.8 m/s?

 a) 1.15 s b) 1.32 s c) 1.52 s d) 1.75 s e) 2.01 s

copies
```===2===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.7 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 44.3N at an angle of 31 degress above the horizontal.  How long will it take to reach a speed of 9.2 m/s?}
-a) 0.91 s
-b) 1.04 s
-c) 1.2 s
+d) 1.38 s
-e) 1.59 s
===3===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.5 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 42.8N at an angle of 36 degress above the horizontal.  How long will it take to reach a speed of 10.4 m/s?}
-a) 1.25 s
-b) 1.44 s
+c) 1.65 s
-d) 1.9 s
-e) 2.18 s
===4===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.7 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 41.3N at an angle of 40 degress above the horizontal.  How long will it take to reach a speed of 10.3 m/s?}
-a) 1.4 s
-b) 1.61 s
+c) 1.86 s
-d) 2.13 s
-e) 2.45 s
===5===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.2 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 46N at an angle of 32 degress above the horizontal.  How long will it take to reach a speed of 9.1 m/s?}
-a) 1.05 s
+b) 1.21 s
-c) 1.39 s
-d) 1.6 s
-e) 1.84 s
===6===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.5 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 40.3N at an angle of 43 degress above the horizontal.  How long will it take to reach a speed of 9 m/s?}
-a) 1.27 s
-b) 1.46 s
+c) 1.68 s
-d) 1.93 s
-e) 2.22 s
===7===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.7 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 41.7N at an angle of 55 degress above the horizontal.  How long will it take to reach a speed of 10.5 m/s?}
-a) 1.89 s
-b) 2.18 s
+c) 2.5 s
-d) 2.88 s
-e) 3.31 s
===8===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.4 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 41.2N at an angle of 58 degress above the horizontal.  How long will it take to reach a speed of 10.5 m/s?}
+a) 2.6 s
-b) 2.99 s
-c) 3.43 s
-d) 3.95 s
-e) 4.54 s
===9===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.2 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 41.3N at an angle of 55 degress above the horizontal.  How long will it take to reach a speed of 9.8 m/s?}
-a) 1.87 s
+b) 2.15 s
-c) 2.47 s
-d) 2.85 s
-e) 3.27 s
===10===
{<!--a04DynForce Newton_sled_3-->A sled of mass 5.1 kg is at rest on a perfectly smooth surface.  A string pulls with a tension of 47.8N at an angle of 36 degress above the horizontal.  How long will it take to reach a speed of 9 m/s?}
-a) 0.68 s
-b) 0.78 s
-c) 0.9 s
-d) 1.03 s
+e) 1.19 s
```

## a04DynForce Newton_sled_v1

A sled of mass 2.1 kg is on perfectly smooth surface. A string pulls with a tension of 17.5N. At what angle above the horizontal must the string pull in order to achieve an accelerations of 2.8 m/s2?

 a) 70.4 degrees b) 80.9 degrees c) 93.1 degrees d) 107 degrees e) 123.1 degrees

copies
```===2===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.3 kg is on perfectly smooth surface.  A string pulls with a tension of 18.3N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 2.8 m/s<sup>2</sup>?}
+a) 69.4 degrees
-b) 79.8 degrees
-c) 91.8 degrees
-d) 105.5 degrees
-e) 121.4 degrees
===3===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.6 kg is on perfectly smooth surface.  A string pulls with a tension of 16.4N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 3.1 m/s<sup>2</sup>?}
-a) 34.6 degrees
-b) 39.8 degrees
-c) 45.8 degrees
-d) 52.7 degrees
+e) 60.6 degrees
===4===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.6 kg is on perfectly smooth surface.  A string pulls with a tension of 19.3N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 2.5 m/s<sup>2</sup>?}
+a) 70.3 degrees
-b) 80.9 degrees
-c) 93 degrees
-d) 106.9 degrees
-e) 123 degrees
===5===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.5 kg is on perfectly smooth surface.  A string pulls with a tension of 18.1N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 2 m/s<sup>2</sup>?}
+a) 74 degrees
-b) 85.1 degrees
-c) 97.8 degrees
-d) 112.5 degrees
-e) 129.4 degrees
===6===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.2 kg is on perfectly smooth surface.  A string pulls with a tension of 17.2N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 3.5 m/s<sup>2</sup>?}
-a) 36.3 degrees
-b) 41.7 degrees
-c) 47.9 degrees
-d) 55.1 degrees
+e) 63.4 degrees
===7===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.5 kg is on perfectly smooth surface.  A string pulls with a tension of 17.7N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 3.1 m/s<sup>2</sup>?}
-a) 48.4 degrees
-b) 55.7 degrees
+c) 64 degrees
-d) 73.6 degrees
-e) 84.7 degrees
===8===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.6 kg is on perfectly smooth surface.  A string pulls with a tension of 19.2N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 2.4 m/s<sup>2</sup>?}
-a) 53.7 degrees
-b) 61.8 degrees
+c) 71 degrees
-d) 81.7 degrees
-e) 93.9 degrees
===9===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2 kg is on perfectly smooth surface.  A string pulls with a tension of 17.4N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 2.9 m/s<sup>2</sup>?}
-a) 53.3 degrees
-b) 61.3 degrees
+c) 70.5 degrees
-d) 81.1 degrees
-e) 93.3 degrees
===10===
{<!--a04DynForce Newton_sled_4-->A sled of mass 2.1 kg is on perfectly smooth surface.  A string pulls with a tension of 17.7N.  At what angle above the horizontal must the string pull in order to achieve an accelerations of 3.6 m/s<sup>2</sup>?}
-a) 56.3 degrees
+b) 64.7 degrees
-c) 74.4 degrees
-d) 85.6 degrees
-e) 98.4 degrees
```