Question

Abody of mass $2kg$ is at rest on a horizontal table. The coefficient of friction between the body and the table is $0\cdot 3$. A force of $5N$ is applied on the body. The acceleration of the body is

• A. $2\cdot 5m/s^2$
• B. $0m/s^2$
• C. $7\cdot 5m/s^2$
• D. $5m/s^2$

Answer 1

The correct option is B $0m/s^2$

Draw a free body diagram of the given problem.

Find friction force between the body and table.
Formula used: $=f_s\mu N$
Given, applied force $=5N$
Mass of the body m $=2kg$
The coefficient of friction $\mu =0\cdot 3$
As the friction force is given by
$f_s=\mu N$
Substituting the values, we get
$f_s=0\cdot 3\times 2\times 10=6N$
Applied force $<f_s$
So, body would not move. Therefore, the acceleration of the body will be zero.
Final Answer:$\left(a\right)$