Which of the following statements is/are correct in any machine?

I. The velocity ratio is usually greater than the mechanical advantage.
II. Efficiency work inputwork outputIII. The velocity ratio is independent of friction.

A.

I only

B.

III only

C.

I and II only

D.

I and III only

E.

II and III only

View answer & explanation

Correct answer is D

No explanation has been provided for this answer.

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