# AP Physics: Introduction to Momentum and Impulse

Jun 17th, 2015
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1)An incident ball A of mass 0.10 kg is sliding at 1.4 m/s on the horizontal tabletop of negligible friction shown above. It makes a head on collision with a target ball B of mass 0.50 kg at rest at the edge of the table. As a result of the collision, the incident ball rebounds, sliding backwards at 0.70 m/s immediately after the collision.

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AP Physics: Introduction to Momentum and Impulse1)An incident ball A of mass 0.10 kg is sliding at 1.4 m/s on the horizontal tabletop of negligible friction shown above. It makes a headon collision with a target ball B of mass 0.50 kg at rest at the edge of the table. As a result of the collision, the incident ball rebounds, sliding backwards at 0.70 m/s immediately after the collision.a. Calculate the speed of the 0.50 kg target ball immediately after the collision.The tabletop is 1.20 m above a level, horizontal floor. The target ball is projected horizontally and initially strikes the floor at a horizontal displacement d from the point of collision.b. Calculate the horizontal displacement d.In another experiment on the same table, the target ball B is replaced by target ball C of mass 0.10 kg. The incident ball A again slides at 1.4 m/s, as shown above left, but this time makes a glancing collision with the target ball C that is at rest at the edge of the table. The target ball C strikes the floor at point P, which is at a horizontal displacement of 0.15 m from the point of the collision, and at a horizontal angle of 30 from the +xaxis, as shown above right.c. Calculate the speed v of the target ball C immediately after the collision.d. Calculate the ycomponent of incident ball A's momentum immediately after the collision. 2)A motion sensor and a force sensor record the motion of a cart along a track, as shown above. The cart is give

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