Question

Draw a labelled diagram of a single rope pulley block and tackle having a velocity ratio of 5. If, using the machine, a load of 500 N is raised a distance of 2 m by an effort of 160 N, find (a) its efficiency (b) the work wasted in the machine. (Ans. 62.5 % and 600 J)
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Answer 1

Answer:

A block and tackle system of pulleys has velocity ratio 4. <br> Draw a neat labelled diagram of the system indicating clearly the points of application and direction of load and effort.

Answer 2

This is the method

Sorry I don't know the last part

Hope this little portion helps you

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