Aman has a weight of 100 newtons. how much work is done if he climbs 4meters up a ladder?

400 J

Explanation:

Work is done when a force that is applied to an object moves that object.

The work is calculated by multiplying the force by the amount of movement of an object

W = F * d

here the man has to work against the gravitational field. (against his weight)

F =100 N

Work done =  F * d

                   =   100 * 4

                   = 400 J

a longitudinal wave moves energy that is to the direction of the wave’s movement. - true

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