A 170 gram billiard ball rolls towards the wall of a billiard table. The ball hits the wall straight on and comes straight back.

A 97.5 kg97.5 kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.55 rad/s1.55 rad/s. A monkey drops a 8.03 kg8.03 kg bunch of bananas vertically onto the platform. They hit the platform at 4545 of its radius from the center, adhere to it there, and continue to rotate with it. Then the monkey, with a mass of 21.1 kg21.1 kg, drops vertically to the edge of the platform, grasps it, and continues to rotate with the platform. Find the angular velocity of the platform with its load. Model the platform as a disk of radius 1.95 m1.95 m.

The figure shows a small piece of clay colliding into a disk. The disk is initially at rest, but can rotate about a pivot fixed at its center. The collision is completely inelastic.1) The disk has mass M = 4.73 kilograms and radius R = 0.755 meters. The clay has mass m = 279 grams and is moving horizontally at vi = 3.66 m/s just before colliding with and sticking to the disk. The clay strikes the edge of the disk at a location of b = 0.505 meters offset from the center of the disk. Note that the size of the clay is negligible compared to the radius of the disk. 2) Calculate the angular velocity (rad/s) of the disk just after the collision.

A small Particle of mass 50 gram fired horizontally at a speed of 8 m/s . When it collides and embedded to the edge of a uniform solid cylinder who is initially at rest, the cylinder rotates freely about its axis through its center perpendicular to the page. If the cylinder has a mass of 0.6 kg and a radius of 20 cm, How much kinetic energy is lost in the collision? After Before O A. 1.4 J OB. 2.8 J О С. 3.2 J O D. 4.4 J O E. 1J