Question

No work is done by a force on an object if

Answer 1

(1) If there is no displacement.

(2) If the distance between the force and displacement is 90°.

Answer 2

Answer:

(1) If there is no displacement.  

(2) If the angle formed between the force and displacement is 90°.

Explanation:

W= f*d

So, if d=0

Then, W= f*0=0

And, 90* force= W=o

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