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Problem_Sheet_10

# Problem_Sheet_10 - Problem Sheet 10 Ch 10 GE 208K 1 A 3.00...

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Problem Sheet 10: Ch 10 GE 208K 1. A 3.00 kg particle has a velocity of (3.00I-4.00j)m/s. a. Find the x and y components of the momentum b. Find the magnitude and direction of the momentum. 2. Two blocks of mass M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord initially holding the blocks together is burned; after this, the block of mass 3M moves to the right with a speed of 2.00m/s. a. What is the speed of the block of mass M? b. Find the potential energy in the spring if M=0.35kg 3. A block of mass 0.15kg is dropped from rest from a height of 1.25m. It rebounds from the floor to reach a height of 0.96m. What impulse was given to the ball by the floor? 4. A 3.00kg steel ball strikes a wall with a speed of 10.0m/s at an angle of 60.0 ° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.2 s, what is the average force exerted by the wall on the ball?

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