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PULLEYS AND LIFTING EXAM QUESTION

V. Ryan 2004 - 2017

 

1. The pulley system is used to lift small loads from aground floor to an upper floor. The load being lifted is 200N.

1a. What is the mechanical advantage of this pulley system ?

1b. What is the velocity ratio of the system ?

1c.What effort is required to lift the load ?

1d. If the system moves the load 5metes upwards, how far must the effort move ?

 

1e. With the aid of a diagram, describe how the pulley wheel at the top of the pulley system could be fixed in position, with enough strength to hold heavy weights.

Steel bolts could be used to hold the weight of the pulley system. One advantage of using bolts is that they can be removed easily so that the pulley system can be dismantled.

   
 
   

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