A body of mass of 2 kg is at rest. What should be the magnitude of force which will make the body move with a speed of 30 m/s at the end of 1 s?

 Mass of the body $m=2\ kg$

Initial velocity $u=0$

Final velocity $v=30\ m/s$

Time $t=1\ s$

Substituting the above values in $v=u+at$

$30=0+a\times 1$

Or $a=30\ m/s^2$

Therefore, force $F=ma$

$=2\ kg\times30\ m/s^2$

$=60\ N$

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Updated on: 10-Oct-2022

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