A 3.00-kg steel ball strikes a wall with a speed of 10.0 m/s at an angle of θ = 60.0º with the surface. It bounces off with the same speed and angle. 1. Write x and y components of the initial momentum in terms of pi and θ. 2. Write down the magnitudes of the x and y components of the final momentum in terms of pf and θ.

A firecracker breaks up into several pieces, one of which has a mass of 200 g and flies off along the x-axis with a speed of 82.0 m/s. A second piece has a mass of 300 g and flies off along the y-axis with a speed of 45.0 m/s. What are the magnitude and direction of the total momentum of these two pieces? O 361 kg m/s at 56.3° from the x-axis O 21.2 kg • m/s at 56.3° from the x-axis O 361 kg m/s at 0.983° from the x-axis ● 21.2 kg • m/s at 39.5° from the x-axis O 93.5 kg • m/s at 28.8° from the x-axis

I.  A lump of clay (m = 3.01 kg) is thrown towards a wall at speed v = 3.15 m/s.  The lump sticks to the wall.  (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   II.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.15 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision.   III.  Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.24 m/s. (a) What kind of collision is it?  Is momentum conserved during this collision?  Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic…

1. A 0.0850-kg bullet is fired at a stationary tin can whose mass is 0.215 kg. The bullet passes through the can, exiting the back of the can with a speed of 22.5 m/s. If the speed of the bullet is 99.0 m/s before it hits the can, what is the speed of the can after the collision?

As part of a carnival game, a ?b=0.628 kgmb=0.628 kg ball is thrown at a stack of 17.8 cm17.8 cm tall, ?o=0.363 kgmo=0.363 kg objects and hits with a perfectly horizontal velocity of ?b,i=11.3 m/s.vb,i=11.3 m/s. Suppose that the ball strikes the topmost object. Immediately after the collision, the ball has a horizontal velocity of ?b,f=3.60 m/svb,f=3.60 m/s in the same direction, the topmost object has an angular velocity of ?o=3.23 rad/sωo=3.23 rad/s about its center of mass, and all the remaining objects are undisturbed. Assume that the ball is not rotating and that the effect of the torque due to gravity during the collision is negligible. If the object's center of mass is located ?=12.5 cmr=12.5 cm below the point where the ball hits, what is the moment of inertia ?oIo of the object about its center of mass?

A billiard ball is moving in the x-direction at 30.0 cm/s and strikes another billiard ball moving in the y-direction at 40.0 cm/s. As a result of the collision, the first ball moves at 55.0 cm/s, and the second ball stops. In what final direction does the first ball move? Choose A. Such a collision cannot happen. B. at an angle of 48.2 degrees ccw from the x-direction C. at an angle of 56.9 degrees ccw from the x-direction D. at an angle of 53.1 degrees ccw from the x-direction