Question

10 ) How much will be the co-efficient of friction
for moving a body of mass 80 kg by a force of 40
kg on a horizontal surface? | किसी क्षैतिज पृष्ठ पर 40
kg के बल द्वारा 80 kg द्रव्यमान के किसी वस्तु को ले जाने के
लिए धर्षण का गुणांक कितना होगा?​

Answer 1

Answer:

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Explanation:

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