1.

A person carries a load of 1000 N at a vertical height of 20 m in 1 minutes .Calculate his power.

Answer»

re!Given,LOAD (mg)= 1000 NHeight (H)= 20 mTime(t) = 1 min = 60 secNow,Work DONE = mgh                    = 1000 * 20                   = 20000 JNow,Power = work done / TIME            = 20000 / 60            = 333.3 W



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