Question

What should be the angle between force and displacement to get
i) maximum work
ii) minimum work
Why zero work is done when a body moves along a circular path?​

Answer 1

Answer:

If displacement is parallel to the direction of force, then θ = 0

0

and hence W = F.s Cos0 = F.s ∗ 1 = F.s which is maximum/

Hence work done is said to be maximum when the angle is zero degrees.

Answer 2

$\huge\bold{\purple{\fbox {\pink{ANSWER}}}}$

$\implies$i) Maximum work:- The angle between force and displacement should be θ = 0°

$\implies$ii) Minimum work:- The angle between force and displacement should be θ = 90°

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