3. A roller is pulled at an angle of 60° to the horizontal through a distance and workdone is W. When the same
is pulled at 30° on the same ground through the same distance the workdone is...?
a) W
b) 2W
CWMV3
d)WV3
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Answer:
it is right answer so please check.
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Answer:
d
Explanation:
given,
W=Fscos(60)
W=FS/2
if it is pulled at 30degrees work done is,
Fscos(30)=Fs√3/2
=√3W
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