Question
Question: Block A is placed on block B (mass of B \> mass of A). There is friction between the blocks but the ...
Block A is placed on block B (mass of B > mass of A). There is friction between the blocks but the ground is frictionless. A horizontal force F, increasing linearly with time, begins to act on A. Accelerations aV and aB of blocks A and B respectively is correctly plotted as
A
B
C
D
Answer
Explanation
Solution
The two blocks move with same acceleration till force of friction between them is not reaching the limiting value. After reaching this value, acceleration of B becomes constant but acceleration of A continues to increase at faster rate.