One man takes 1 minute to raise a box to a height of 1 metre and another man takes 1/2 minute to do so. The energy of the two is

One man takes 1 minute to raise a box to a height of 1 metre and anoth

1.	One man takes 1 minute to raise a box to a height of 1 metre and another man takes 1/2 minute to do so. The energy of the two is
Answer» different same energy of the FIRST is more energy of the SECOND is more Solution :Energy required = MGH. In both cases, h is the same. Hence , energy given by the both is same. [It is worth nothing here that powers of two MEN will be different as power is the energy expense per unit time and TIMES are different here. ]