a force acting on 20 kg mass changes it's velocity from 5m/s to 2m/s.calculate work done
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we know f=ma,
here w=work done
we
know W=f*s=m*a*s=20*(5-2)=60j
here w=work done
we
know W=f*s=m*a*s=20*(5-2)=60j
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