Q. The maximum F which will not cause motion of any of the blocks is:-
A) 10 N
B) 15 N
C) Data insufficient
1 Answer | Add Yours
A block with mass 10 kg is placed on other with mass 5 kg. The coefficient of friction between the 10 kg block and the 5 kg block is 0.1 and the coefficient of friction between the 5 kg block and the ground is 0.3.
The force of friction between the two blocks is equal to 10*10*0.1 = 10 N and the force of friction between the 5 kg block and the ground is (5 + 10)*10*0.3 = 45 N.
When a force of F N is applied to the 10 kg block, it slides when the force is greater than 10 N.
The maximum force that will not cause a motion in any of the blocks is 10 N.
The correct answer is option A, 10 N.
Join to answer this question
Join a community of thousands of dedicated teachers and students.Join eNotes