When the force acts at right angle to the direction of motion,what is the work done by the force??
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31
The work done by the force is zero when the force acts right angle to the direction of the motion.....
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Answer:
work done will be zero when the direction of force and motion is perpendicular to each other.
proof is Given below by mathematical representation.
as we know that,
W=FS Cos theta
W=FS Cos× 90° (cos90°=0)
so, W=FS× 0
Hence, W= 0
proved .
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