Physics
How many strands are supporting the load in case of block and tackle system of 4 pulleys when effort is in downward direction?
- 5
- 4
- 3
- 6
Related Questions
A boy uses a single fixed pulley to lift a load of 50 kgf to some height. Another boy uses a single movable pulley to lift the same load to the same height. The ratio of the two effort is:
- 1:2
- 2:1
- 1:1
- none of these
How many strands are supporting the load in case of block and tackle system of 5 pulleys?
- 4
- 5
- 6
- 7
What is the ideal mechanical advantage of a single fixed pulley? Can it be used as a force multiplier?