10_31_Bowling_Ball_Race - including a momentum diagram. c)...

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Physics 211 10/31 HW Handout Name_____________________ Fall 2001 Bowling Ball Race Due Friday 11/2 1) Paul has fifteen bowling balls of mass m stacked on a frictionless sled, also of mass m, that is at rest. Paul’s mass is 8 m so the total mass starts out at 24 m . By throwing bowling balls off the back, Paul is able to get the sled (with Paul and balls) in motion. a) If the first ball is thrown so that the ball’s final velocity is v, what is the impulse applied to the ball? Show your reasoning. Include a momentum diagram. b) What is the velocity of the sled after the first ball is thrown? Show your reasoning,
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Unformatted text preview: including a momentum diagram. c) Assuming Paul applies the same impulse each time, what is the velocity of the sled after the second ball is thrown? Careful, it’s not twice that in part b. Show your reasoning, including a momentum diagram. Hint: Find ∆ v and add it to v sled from part b. d) What if he keeps it up till all the balls are gone? How fast are he and the sled going now? Hint: Find ∆ v for each toss and add them all up. This will be a bunch of fractions so you can leave it that way or add them as decimals. Show your reasoning. 8 m m 24 m = initial mass of the system...
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This note was uploaded on 12/21/2010 for the course PHYS Physics 21 taught by Professor Larrywatson during the Fall '08 term at North Dakota.

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