Question

A body just begins to slide over a rough surface when pulled with a force of 20N. If it is pulled with a
force of 15N, the force of friction between the surfaces is
a) zero
b) 15 N
c) 20N
d) 10N
​

Answer 1

Answer:

B) 15N

Explanation:

As we know frictional force is self adjusting force so.. for exp:- if we apply 5N force on it than frictional force will also oppose with 5N..