Question

A long block A of mass $M$ is at rest on a smooth horizontal surface. A small block B of mass $\frac M2$ is placed on A at one end and projected along A with some velocity $v$. The coefficient of friction between the block is $μ$. Then, the accelerations of blocks A and B before reaching a common velocity will be respectively.

• A. $\frac {μ_g}{2}$ (towards right), $\frac {μ_g}{2}$ (towards left)
• B. $μ_g$ (towards right), $μ_g$ (towards left)
• C. $\frac {μ_g}{2}$ (towards right), $μ_g$ (towards left)
• D. $μ_g$ (towards right), $\frac {μ_g}{2}$ (towards left)

Answer 1

Answer: (C)

$\frac {μ_g}{2}$ (towards right), $μ_g$ (towards left)

Answer 2

The correct option is (C): $\frac {μ_g}{2}$ (towards right), $μ_g$ (towards left).