# 20100402 - Dynamics 4600:203 Name Homework 08 Due Please...

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Dynamics 4600:203 Homework 08 Due: April 02, 2010 Name: Please denote your answers clearly, i.e., box in, star, etc., and write neatly . There are no points for small, messy, unreadable work . . . please use lots of paper. Problem 1: When the driver applies the brakes of a light truck traveling 40 km / h, it skids 3 m before stopping. How far will the truck skid if it is traveling 80 km / h when the brakes are ap- plied? Problem 2: Determine the velocity of the 60 lb block A if the two blocks are released from rest and the 40 lb block B moves 2 ft up the incline. The coeFcient of kinetic friction between both blocks and the inclined plane is μ k = 0 . 10. μ k A B ψ = 30 g Problem 3: The collar has a mass of 20 kg and slides along the smooth rod. Two springs are attached to it and the ends of the rod as shown. If each spring has an uncompressed length of 1 m and the collar has speed 2 m / s when s = 0, de- termine the maximum compression of each spring due to the back-and-forth (oscillating)

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## This note was uploaded on 04/13/2010 for the course DYNAMO 4600 taught by Professor Guy during the Spring '10 term at École Normale Supérieure.

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20100402 - Dynamics 4600:203 Name Homework 08 Due Please...

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