condition under which force does no work
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When there is equal force from both directions from which the force is being applied from
Also when the force is less than the frictional force
Also when the force is less than the frictional force
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Work = FS cosθ
For zero work
1. S should be zero. This will happen if limiting frictional force is much larger than applied force. Body will not move => S = 0.
2. cosθ should be equal to zero. This will happen if θ = 90°. When Force is acting perpendicular to direction of motion of body then work done by force is zero.
For zero work
1. S should be zero. This will happen if limiting frictional force is much larger than applied force. Body will not move => S = 0.
2. cosθ should be equal to zero. This will happen if θ = 90°. When Force is acting perpendicular to direction of motion of body then work done by force is zero.
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