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# (Solved): 8. You drive a go-cart around a track as shown below, consisting of two arcs connected by two strai ...

8. You drive a go-cart around a track as shown below, consisting of two arcs connected by two straight-aways as shown. The radius of the larger arc is 30 meters, and the radius of the smaller arc is 10 meters. a. You drive at a constant clockwise around the track. What are the accelerations at the points W, X, Y, and ? Write the magnitude of and draw an arrow indicating the direction of at each point. Draw the arrows to scale so a larger acceleration gets a longer arrow. Write " " if the acceleration is zero. b. Your friend drives the small arc at , then accelerates on the lower straight-away from to 13 in 2 seconds, drives the large arc (Z) at a constant speed of , and then slows back down on the top straight-away (W) from to in 2 seconds. What is your friend's acceleration at the points W, X, and ? Write the magnitude of and draw an arrow indicating the direction of at each point.

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