FrictionMedium
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 P of mass m is placed over a plank of mass M. Plank Q is placed over a smooth horizontal surface as shown in fig...A bead of mass m is located on a parabolic wire with its axis vertical and vertex directed towards downward as in figure...A block of mass m is in contact with the cart C as shown in the figure The coefficience of static friction between the b...The force of friction is due to :-...Given in the figure are two blocks A and B of weight 20 N and 100 N, respectively. These are being pressed against a wal...