Question

Circle the odd one out earth,merry go round, bicycle, pendulum

Answer 1

Bicycle.

W=FS cos theta

All the bodies other than bicycle have uniform circular motion. The cosine of the angle formed between the tangent to every point of the circular (or semi circular path) is 0.

Cos theta=0.

Therefore, W=FS cos 0 degree

Or, W= FS× 0

Or, W=0.

Work done by bicycle is not 0.

Answer 2

Answer:

Bicycle

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