Physics equations/02-One dimensional kinematics/Q:definitions

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1 A car traveling at 35.3 miles/hour stops in 4.3 seconds. What is the average acceleration?

	a) 2.06 x 100 m/s2
	b) 3.67 x 100 m/s2
	c) 6.53 x 100 m/s2
	d) 1.16 x 101 m/s2
	e) 2.06 x 101 m/s2

2 A car completes a complete circle of radius 3.1 miles at a speed of 51 miles per hour. How many minutes does it take?

	a) 7.25 x 100 minutes
	b) 9.66 x 100 minutes
	c) 1.29 x 101 minutes
	d) 1.72 x 101 minutes
	e) 2.29 x 101 minutes

3 A car traveling at 21.3 mph increases its speed to 24.2 mph in 1.4seconds. What is the average acceleration?

	a) 9.26 x 10-1 m/s2
	b) 1.65 x 100 m/s2
	c) 2.93 x 100 m/s2
	d) 5.21 x 100 m/s2
	e) 9.26 x 100 m/s2

4 Mr. Smith is backing his car at a speed of 3.28 mph when he hits a cornfield (seed corn). In the course of 1.92 seconds he stops, puts his car in forward drive, and exits the field at a speed of 5.66 mph. What was the magnitude ( absolute value) of his acceleration?

	a) 2.94 x 100 miles per hour per second
	b) 3.7 x 100 miles per hour per second
	c) 4.66 x 100 miles per hour per second
	d) 5.86 x 100 miles per hour per second
	e) 7.38 x 100 miles per hour per second

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