A man pushes a wall and fails to displace it. He does :
Negative work
Positive but not maximum work
Maximum work
No work at all
A
Maximum work
B
No work at all
C
Negative work
D
Positive but not maximum work
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Solution
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As we know work done is Force X Displacement
If a person tries to push the wall he applies the force but displacement is zero, so product of force and displacement will be zero. So work done is zero.
so option D is correct.
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