Question

if the pulling force on the block is 80 N, then the static friction is​

Answer 1

Let a be the acceleration of the box.

The equation of motion of the box, ma=F−f    (as friction force always opposite to applied force)

or 40a=80−60

or a=20/40=0.5m/s 2

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Answer 2

Answer:

80 Statis friction

if we pulling foorc