Unformatted text preview: Ch. 6 Warm Up #1 (Jan. 7, 2010)
A 0.25 kg tennis ball is moving to the right at a speed of 20 m/s when it hits a wall. It rebounds off of the wall at a speed of 20 m/s. Assume that to the right is positive. a) Draw a diagram that shows the ball before and after the collision. b) What is the change in momentum of the tennis ball? c) How much impulse was given to the ball by the wall? d) How much impulse was given to the wall by the ball? 1 2 3 4 Math Physics Conservation of Momentum Practice Problems 1. Cart A is moving to the right with a speed of 3.0 m/s. Cart A overtakes and collides with Cart B (which is moving to the right at a speed of 1.0 m/s). Both carts have a mass of 1.5 kg. The collision is totally inelastic (i.e. the carts stick together). Draw before collision and after collision diagrams. What is the velocity of both carts after the collision? 2. Cart A (mass = 0.75 kg) is moving to the left with a speed of 3.0 m/s. Cart B (mass = 0.5 kg) is moving to the right at a speed of 1.5 m/s. The carts collide and stick together. Draw before collision and after collision diagrams. What is the velocity of both carts after the collision? 5 ...
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This document was uploaded on 01/30/2011.
 Winter '09
 Physics, Momentum

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