What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage?

Physics JAMB 2015

What is the relationship mechanical advantage (MA) velocity Ratio (V.R) and efficiency with percentage?

  • e = M.A/V.R ร— 100 % checkmark
  • M.A = E.V.R
  • V.R = 1 รท sin ฮธ M.A
  • M.A = 1/E ร— 100%

The correct answer is: A

Explanation

he relationship between M.A, V.R, e and 100% can be written as

e = M.A/V.R ร— 100 %

i.e E/100 = M.A/V.R

= L รท E/x รท y = Ly/Ex

E/100 = Ly/Ex

There is an explanation video available .

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