Question

2. A body of mass 500 g, initially at rest, is acted upon
by a force which causes it to move a distance of
4 m in 2 s, Calculate the force applied. Ans. 1 N​

Answer 1

Answer

Given: m=500gor0.5kg,u=0;s=4m;t=2s,F=?

We know that, S=ut+

2at

2

1

4=(0)(2)+

2

1

(a)(2)

2

4=0+2a

a=2m/s

2

Force=mass×acceleration

=0.5×2

=1N

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