Physics, asked by enakshipathak24, 1 year ago

A weightlifter is lifting weights of mass 200 kg up to a height of 2 meters. If acceleration due to gravity = 9.8 m s⁻²,calculate the work done by the weightlifter

Answers

Answered by asif9241
31
This may help you.. good luck
Attachments:

enakshipathak24: Why there is - sign in acceleration due to gravity?
asif9241: because he was pulling it in the opposite direction(upward) of gravity
Answered by sainikhushi236
6

Answer:

Answer = 3920 J  

Explanation: Weight ( Mass) = 200 kg

Height ( h) = 2m

Acceleration due to gravity ( g) = 9.8  m s⁻²

Work done = mgh

                =   200kg * 9.8m s⁻²* 2m

                 = 3920 kg ms⁻² m

                 = 3920 Nm or 3920 J

Hence , The work done by the weightlifter is 3920 J

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