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Determine the following:

1			Coordinates of the CM of the system after 2.00 s Need a Hint?
2			Coordinates of the velocity of the CM of the system after 2.00 s Need a Hint?
3			Coordinates of the acceleration of the CM of the system after 2.00 s Need a Hint?
4			Coordinates of the net force on the system after 2.00 s Need a Hint?

A 100-g ball moving at a speed of 40.0 m/s strikes a wall at an angle of 60.0° with respect to the normal. There is no change in the component of the velocity parallel to the wall and the ball leaves the wall with a speed of 38.0 m/s. The ball and wall are in contact for 0.100 s.

5			Magnitude of the ball's initial momentum Need a Hint?
6			Component of the ball's initial velocity perpendicular to the wall Need a Hint?
7			Component of the ball's final velocity perpendicular to the wall Need a Hint?
8			Angle with which the ball leaves the wall Need a Hint?
9			Magnitude of the ball's final momentum Need a Hint?
10			Magnitude of the impulse imparted to the ball Need a Hint?
11			Magnitude of the average force exerted on the ball Need a Hint?

m1 is released from rest and collides elastically with m2. The objects have the same mass, the horizontal surface is frictionless, the cord attached to m1 is 1.00 m long, and θ is 30.0°.

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12			Speed of m1 the instant before the collision Need a Hint?
13			Speed of m1 after the collision Need a Hint?
14			Speed of m2 after the collision Need a Hint?

m₁ and m₂ are traveling as shown in the figure below. m₁ slides down the ramp, overtaking and colliding elastically with m₂. The surface is frictionless.

m1 = 400 g     h = 1.00 m m2 = 200 g    μ = 0 v1i = v2i = 1.00 m/s

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15			Speed of m1 the instant before the collision Need a Hint?
16			Speed of m1 after the collision Need a Hint?
17			Speed of m2 after the collision Need a Hint?

m₁ and m₂ travel toward each other before colliding inelastically and sticking together, as shown in the figure below. The surface is frictionless.

m1 = 400 g    v1i = +1.00 m/s m2 = 200 g    v2i = -3.00 m/s    μ = 0

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18			Velocity of m1 after the collision Need a Hint?
19			Velocity of m2 after the collision Need a Hint?

m1 is fired into m2 which is initially at rest on a rough surface. The collision is totally inelastic. The composite object (m1 + m2) travels 5.00 m across the surface before coming to rest.

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20			Speed of the composite object the instant after collision Need a Hint?
21			Acceleration of the composite object as it slides Need a Hint?
22			Frictional force decelerating the composite object Need a Hint?
23			Coefficient of friction for the composite object on the rough surface Need a Hint?