A force acting on a 30kg mass changes its velocity from 2m/s to 5m/s in 10s. if object is displaced by a distance 3m, calculate the work done.
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Answer:
given ,m=30
v1=2,v2=5
a(acceleration)=v2-v1/t
=5-2/10=0.3m/s2
force=mass×accelaration
=30*0.3=9
work done =force * distance
=9*3=27
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