Question

A vehicle having mass equal to $1000kg$ is running with a speed of $10m/s$. After applying the force of $1000N$ for $10$ second what will be the speed of vehicle?

• A. $20m/s$
• B. $10m/s$
• C. $25m/s$
• D. $1.5m/s$

Answer 1

The correct option is A $20m/s$

Given : $m=1000$ kg $F=1000$ N $u=10$ m/s $t=10$ s

Acceleration of the vehicle $a=\frac{F}{m}=\frac{1000}{1000}=1$ $m/s^2$

Using $v=u+at$

$\therefore$ $v=10+1\times 10$ $⟹v=20$ m/s