Question

An engine block of mass M is on the flatbed of a pickup truck that is traveling in a straight line down a level road with an initial speed of 25 m/s. The coefficient of static friction between the block and the bed is μs = 0.566. Find the minimum distance in which the truck can come to a stop without the engine block sliding toward the cab in meters.

Answer 1

s =v ² /2•a = v ² /2•μ•g = 25²/2•0.566•9.8 =56.34 m