Question

A force of 10 N is applied on a body of 2 kg mass at rest. The distance travelled by the body in 2 sec. is:

• A. 10 m
• B. 20 m
• C. 30 m
• D. 40 m

Answer 1

Answer: (A)

10 m

Given : $F=10$ N $m=2$ kg $t=2$ s $u=0$ m/s

Acceleration of the body $a=\frac{F}{m}=\frac{10}{2}=5$ $m/s^2$

Using $S=ut+\frac{1}{2}a{t}^2$

$\therefore$ Distance traveled in 2 s, $S=0+\frac{1}{2}\times 5\times 2^2=10$ m