Ref 910
Asked by arup.isro
19th August 2018,
10:30 PM
Answered by Expert
Answer:
Since the body is not moving even after applying force F, it implies that this force is not exceeding contact force.
Contact force is the resultant of normal force and friction force.
if m is mass of body, themn normal force N = m×g
if μ is the friction coefficient, then friction force = μ×N = μ×m×g
hence resultant contact force = 
hence applied force F is in the range as given by, 
Answered by Expert
20th August 2018,
3:07 PM
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