a weight lifter lifted a load of 200 kgf to a height of 2.5 m in 5 s. calculate, the work done and the power developed by him . take G = 10N kg-1
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Force =mass ×gravity
F=200×10
=200N
Work done =d×f
2.5×2000=5000joule
The power developed by him
Power=w÷time taken
P=5000÷5=1000watt
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