Question no. 9
9. A block and tackle system has the velocity ratio 3. Draw a labelled diagram of the system indicating the points of application and the directions of load and effort. A man can exert a pull of 200 kgf. What is the maximum load he can raise with this pulley system if its efficiency is 60%?
Ans : 360 kgf
Dear student,
velocity ratio 3 means ratio of distance moved by an effort to distance moved my load is 3.
Diagram is attached below,
velocity ratio 3 means ratio of distance moved by an effort to distance moved my load is 3.
Diagram is attached below,