Asked by Bolke


A 3.5 kg mass sits at rest on a rough surface. The surface has the following coefficients of friction: µs = 0.53 and µk = 0.21. Determine the required force to start the object moving?

Answers

Answered by drwls
The µs "static" friction coefficientr is what determines whether it moves or not.

To make it move, you need a horizontal force of at least

F = M*g*µs = 18.2 N
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