alleryWork done by a force perpendicular to the motion is:
AZero
BHalf
CMore
DFull
Answer & Solution
Correct answer: A. Zero
1. Work counts only the force along the displacement.
2. A perpendicular force has no part along it.
3. So no work is done by that force.
4. The answer is zero.
_Source: syllabus Science, Ch 7 'Work, Energy, and Simple Machines'_
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