Physics equations/03-Two-Dimensional Kinematics/Q:2Dmotion

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A

1

A ball is kicked horizontally from a height of 2.3 m, at a speed of 7.8m/s. How far does it travel before landing?

	a) 3.09 m.
	b) 3.71 m.
	c) 4.45 m.
	d) 5.34 m.
	e) 6.41 m.

2

A particle is initially at the origin and moving in the x direction at a speed of 3.7 m/s. It has an constant acceleration of 2.3 m/s² in the y direction, as well as an acceleration of 0.5 in the x direction. What angle does the velocity make with the x axis at time t = 2.8 s?

	a) 51.62 degrees.
	b) 59.37 degrees.
	c) 68.27 degrees.
	d) 78.51 degrees.
	e) 90.29 degrees.

3

At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 7.29 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.75 m, and moves at a constant speed of 2.98 m/s in the +y direction. At what time do they meet?

	a) 0.24 s.
	b) 0.29 s.
	c) 0.34 s.
	d) 0.41 s.
	e) 0.5 s.

4

At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 7.17 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.04 m, and moves at a constant speed of 2.52 m/s in the +y direction. What is the value of θ (in radians)?

	a) 0.27 radians.
	b) 0.31 radians.
	c) 0.36 radians.
	d) 0.41 radians.
	e) 0.47 radians.

B

1

A ball is kicked horizontally from a height of 2.7 m, at a speed of 7.5m/s. How far does it travel before landing?

	a) 3.22 m.
	b) 3.87 m.
	c) 4.64 m.
	d) 5.57 m.
	e) 6.68 m.

2

A particle is initially at the origin and moving in the x direction at a speed of 4.3 m/s. It has an constant acceleration of 2.2 m/s² in the y direction, as well as an acceleration of 0.3 in the x direction. What angle does the velocity make with the x axis at time t = 2.8 s?

	a) 37.93 degrees.
	b) 43.62 degrees.
	c) 50.16 degrees.
	d) 57.68 degrees.
	e) 66.33 degrees.

3

At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.42 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.89 m, and moves at a constant speed of 2.26 m/s in the +y direction. At what time do they meet?

	a) 0.49 s.
	b) 0.59 s.
	c) 0.7 s.
	d) 0.84 s.
	e) 1.01 s.

4

At time, t=0, two particles are on the x axis. Particle A is (initially) at the origin and moves at a constant speed of 5.15 m/s at an angle of θ above the x-axis. Particle B is initially situated at x= 2.05 m, and moves at a constant speed of 2.94 m/s in the +y direction. What is the value of θ (in radians)?

	a) 0.46 radians.
	b) 0.53 radians.
	c) 0.61 radians.
	d) 0.7 radians.
	e) 0.8 radians.