A body of mass 0.5kg is moving at a constant velocity of 2ms-1. to bring it to rest in 2 metres,the work done is
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Using equation of motion
v²=u²+2as
0²=2²+2a(2)
a=-1
Work done = Force*displacement
= ma*displacement
= (0.5)(-1)(2)
= -1 J
v²=u²+2as
0²=2²+2a(2)
a=-1
Work done = Force*displacement
= ma*displacement
= (0.5)(-1)(2)
= -1 J
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