Question 1 Report
A machine whose efficiency is 60% has a velocity ratio of 5. If a force of 500N is applied to lift a load P, what is the magnitude of P?
Answer Details
efficiency = (M.A / V.R) x 100/1 =>60/100 = M.A/5 ∴M.A = (60 X 5) / 100 = 3 But M.A = Load/Effort; => 3 = Load/500 ∴Load = 500 x 3 = 1500N