FrictionHard
Question
A force F = t is applied to block A as shown in figure. The force is applied at t = 0 seconds when the system was at rest and string is just straight without tension. Which of the following graphs gives the friction force between B and horizontal surface as a function of time ′t′.
Options
A.
B.
C.
D.
Solution
When F is less than μsmg then tension in the string is zero.
When μsmg ≤ F < μs2mg then friction on block B is static.
If F is further increase friction on block B is kinetic.
When μsmg ≤ F < μs2mg then friction on block B is static.
If F is further increase friction on block B is kinetic.
Create a free account to view solution
View Solution FreeMore Friction Questions
A block of mass M = 5 kg is resting on a rough horizontal surface for which the coefficient of friction is 0.2. When a f...A block of mass m = 10 kg rests on a horizontal table. The coefficient of friction between the block and thetable is 0.0...A solid cube of mass 5 kg is placed on a rough horizontal surface, in xy-plane as shown. The friction coefficient betwee...The upper half of an inclinded plane of inclination θ is perfectly smooth while lower half is rough. A block starti...Which one of the following statements is incorrect ?...