question_answer

A block is lying static on the floor. The maximum value of static frictional force on the block is 10 N. If a horizontal force of 8 N is applied to the block, what will be the frictional force on the block?

A)  2N             

B)  18 N

C)  8N              

D)  10 N

Correct Answer: C

Solution :

 Static frictional force \[{{f}_{s}}=10\,N\] If \[F=8\,N\] \[{{f}_{s}}=8\,N\] for the given case. Because if force is applied and the body remains m at rest, then static force is equal to applied force.