Question

A woman exerts a horizontal force of 107 N on a box with a mass of 40.2 kg.

(a)

If the box doesn't move, what's the magnitude of the static friction force (in N)?

N

(b)

What is the minimum possible value of the coefficient of static friction between the box and the floor? (Assume the box remains stationary.)

Answer #1

A factory worker exerts a 100 N horizontal pushing force on a
70.0 kg box that is initially at rest on the floor. The coefficient
of static friction is 0.2 and the coefficient of kinetic friction
is 0.1. The force of friction acting on the box is equal to:

A box with mass of 5 kg is pushed with a force of 15 N on a
rough horizontal floor. Find the friction force (assume that the
static friction coefficient µs=0.4 ).
Please Solve As soon as
Solve quickly I get you thumbs up directly
Thank's
Abdul-Rahim Taysir

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