Wednesday, July 13, 2011

Friction physics question?

A crate is loaded onto a flatbed truck and the coefficient of static friction between the crate and the ruck is 0.45. If the driver of the truck is moving at 25m/s and sees the car ahead of him stop, 147m away, will the crate slide relative to the truck as the driver avoids a collision? If so, what is the acceleration (magnitude and direction) of the crate?

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