Question

If the coefficient of friction is 0.30, the horizontal force needed to pull a mass of 15 kg across a level board with constant velocity is ____N.

Answer 1

Answer on Question#41290, Physics, Mechanics Question: If the coefficient of friction is 0.30, the horizontal force needed to pull a mass of 15 kg across a level board with constant velocity is

Solution. Equalibrium of forces (as speed is constant)

$F_{friction}=F$

$\mu mg=F$

$F=0.3\cdot 15\cdot 9.8=44.1\,N$

Needed force is $44.1\,N$.

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