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Physics II workshop_Part_59

Physics II workshop_Part_59 - Problems Using Momentum and...

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120 Problems Using Momentum and Impulse 1. A one dimensional collision occurs between a cart of mass 11.0 kg moving to the right at 3.0 m/s and a block of mass 5.0 kg moving to the left at 12.0 m/s. After the collision, the block moves to the right at 4.0 m/s. (a) What is the velocity of the cart after the collision? (b) If the collision lasts 0.020 s, find the average force on the cart. (c) Find the average force on the block. 2. A board is standing on the floor, and two different experiments are done. In one a piece of clay is thrown toward the top of the board, it collides and sticks to the board. In the other experiment, a superball is thrown that bounces off the top of the board. The masses of the board, the clay and the ball are the same, and the initial velocities are the same. In one experiment the board falls over, and in the other it wobbles but stays standing. Which object, clay or ball, made the board fall over? Explain. 3.

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Physics II workshop_Part_59 - Problems Using Momentum and...

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