Question

How much power is required to lift a body of mass 100 kg to a height of 60 m in one minute

Answer 1

P = W /T
= mgh /t
= 100x 10 x 60 ÷ 60
= 1000

Answer 2

• Answer:
• 980 W
• Explanation:
• GIVEN:
• m=100kg,h=60m,t=1min=1×60sec
• ∴  Power=W/t    (W=Work done, T=Time )
• ∴        P  =mgh/t  (g=9.8m/s^2)
• ∴            =100×9.8×60/1×60sec
• ∴         P =980W