lecture16_notes

# lecture16_notes - With which slide will the pig reach the...

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A car of mass m traveling at a speed v is braked to a stop by a constant force F . What is the stopping distance d of the car? (Use energy/work concepts to solve, not NII.) d = ? A. F/v B. mv/F C. mv 2 /2F D. mv 2 /F E. 2F/mv 2

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A pig has a choice of three different frictionless slides as shown. With which slide will the pig reach the ground with the greatest speed? (Think about the work done on the pig by the pig's weight.) A. (a) B. (b) C. (c) D. all the same

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A pig has a choice of three different frictionless slides as shown.

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Unformatted text preview: With which slide will the pig reach the ground in the least time? A. (a) B. (b) C. (c) D. all the same E. not enough information A toy gun has a spring with spring constant k =100 N/m . The spring is compressed a distance of 10 cm and a ball of mass m =10 g is inserted in the gun. After the trigger releases the spring, what will be the ball's speed v when the spring has returned to its equilibrium length? v=? A. 1 m/s B. 5 m/s C. 10 m/s D. 50 m/s E. none of the above...
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## This note was uploaded on 02/20/2008 for the course PHYS 2207 taught by Professor Liepe, m during the Fall '07 term at Cornell University (Engineering School).

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lecture16_notes - With which slide will the pig reach the...

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