Please solve this question given in figure only for physics , maths lovers and for neet aspirant.Chapter work energy power. Please explain how to get angle in 1st case(Detailed explanation)
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Answer:
More work done will be in the second case.
Step-by-step explanation:
for case i)
work done,
w= fscosx
= fscos90
=fs×0
=0
(here, the man carries stone in his hand and moves horizontally. for carrying something, one should apply the force in upward direction(vertically) so as to prevent it from falling down under gravity.so, angle between force and displacement will be 90)
for case ii)
work done,
w=fscosx
=fscos0
=fs×1
=fs
(here,he moves and pulls the rope in same direction.so, angle between them will be zero.)
hope it helps..!!
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