Question

A force 1n acts on a body of mass 10kg initially at rest for one minute.calculate the work done by the force.

Answer 1

Answer:

The answer is 180J

Explanation:Mass=10kg,force=1N

Force=mass×acceleration

1 Newton=10 kg×acceleration

Acceleration=1 ÷10=0.1 metre per second square

A body is at rest then u=0mper second

Time=1 minute=60 seconds

V=u +at

V=0+0.1×60=6mper second

2as=v square-u square

2×0.1×s=6×6

0.2s=36 s=180m

Work=force×s=1N×180m=180Joule

Answer 2

Answer:

Explanation:

The answer is 180J

Explanation:Mass=10kg,force=1N

Force=mass×acceleration

1 Newton=10 kg×acceleration

Acceleration=1 ÷10=0.1 metre per second square

A body is at rest then u=0mper second

Time=1 minute=60 seconds

V=u +at

V=0+0.1×60=6mper second

2as=v square-u square

2×0.1×s=6×6

0.2s=36 s=180m

Work=force×s=1N×180m=180Joule