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A gradener pushes a lawn roller through ...

A gradener pushes a lawn roller through a distance 20 m. If he applies a force of 20 kg-wt in a direction inclined at `60^(@)` to the ground, the work done by him is

A

1960 J

B

196 J

C

1.96 J

D

196 kJ

Text Solution

Verified by Experts

The correct Answer is:
A
Given, `F=20 kg-wt=20xx9.8N` and `s=20 m`
`:.` Work done `="F s" cos theta`
`=20xx9.8xx20xx cos 60^(@)=1960 J`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-FORCE-Exercise 1
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