Question

A body of mass 20kg rests on a horizontal plane the co-efficient of friction between the body and plane is0.3. Find the work(N-m) done in moving the body through a distance of 10 meters.​

Answer 1

Explanation:

u= 0.3

m=20 kg

s=10 m

w=?

u = F/N

0.3= F/m×g

F = 0.3 ×20×9.8

= 58.8 N

w = F×S

= 58.8 × 10

= 588 J