S12_final

# Yep sorry a how long does the car take to complete

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Unformatted text preview: 3 hours 1) A car drives at a constant speed of 20 m/s around a perfectly- horizontal circular track of radius 100 m. Take the acceleration due to gravity as 9.8 m s–2 (Noooo…. Not again! Yep, sorry.) a) How long does the car take to complete one lap, and what is its centripetal acceleration? b) If the car is to avoid skidding, what is the minimum coefficient of static friction for the tires on the road? c) If the driver has a mass of 70 kg, what is the magnitude of the force exerted by the car seat on the driver? The next two parts are for extra credit (10 points each): A passenger attempts to shoot a target...
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## This test prep was uploaded on 03/26/2014 for the course PHYSICS 101 taught by Professor Bennet during the Fall '08 term at Johns Hopkins.

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