No work is done when
a.
A nail is plugged into a wooden board
b.
A box is pushed along a horizontal floor
c.
There is no component of force perpendicular to the direction of motion
d.
There is no component of force parallel to the direction of motion
I think the answer should be (d) option. Please tell
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Answer:
I think you are right the answer is d.
Answer:
d.
There is no component of force parallel to the direction of motion