Question

you hold a metal block of mass 40 kg above your head at a height of 2 m how much work is done bu gravity if you let the block fall to the ground

Answer 1

Answer:

784 J

Explanation:

Work is force times distance.

W = Fd

W = mgd

W = (40 kg) (9.8 m/s²) (2 m)

W = 784 J

Answer 2

784 J

The formula used in it is-

W = Fd

here W = Work done

F = Force applied

d= displacement

it can be written as-

W = mgd (as F= mg)

So after putting the value we get-

W = (40 kg) *(9.8 m/s²) *(2 m)

W = 784 J

What is work done?

• Work is done when a force applies to something for a distance and it displaces some distance.
• You can calculate the work done, by multiplying the force by the distance moved in the direction of the force.
• Energy transferred = work done = force x distance moved in the direction of the force.

Learn more about work done here

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