Question

How is the mechanical advantage (M.A) related to the velocity ratio(V.R) for an ideal machine?

• A. Mechanical advantage is equal to the velocity ratio.
• B. Mechanical advantage is always greater than the velocity ratio.
• C. Mechanical advantage is always less than the velocity ratio.
• D. None of these.

Answer 1

The correct option is A

Mechanical advantage is equal to the velocity ratio.

Ideal machine is free from friction and its efficiency is 100%. For an ideal machine, the efficiency is always equal to 1 and the mechanical advantage is numerically equal to the velocity ratio.