Fixed Pulleys
The diagram shows fixed pulley being used by a bag to lift a load of 400N through a vertical height of 5 m in 10 s. The effort applied is 480 N (i) What is the V.R of the pulley? (ii) Calculate the M.A and efficiency (iii) Why is the efficiency of the pulley not 100% (iv) Calculate the energy gaine..
The diagram shows fixed pulley being used by a bag to lift a load of 400N through a vertical height of 5 m in 10 s. The effort applied is 480 N (i) What is the V.R of the pulley? (ii) Calculate the M.A and efficiency (iii) Why is the efficiency of the pulley not 100% (iv) Calculate the energy gaine..