The diagram below shows a pulley arrangement

Force, Work, Power, Energy (10)

The diagram below shows a pulley arrangement:

1. Copy the diagram and mark the direction of tension on each strand of the string.
2. What is the velocity ratio of the arrangement?
3. If the tension acting on the string is T, then what is the relationship between T and effort E?
4. If the free end of the string moves through a distance x, find the distance by which the load is raised.

Answer

(i)

(ii) V.R. = No. of stands supporting load = 2

(iii) E = T

(iv)

 

• Exam Year: 2019