A block and tackle system has a velocity ratio of 4. Draw a labelled diagram of the system indicating the points of application and directions of load and effort. If a force of 400 kgf is exerted, what is the mechanical advantage of the system and the maximum load that can be raised with the system if its efficiency is 75%?
(Take g = 10 m/s²)
❗ PLEASE explain WITH proper FORMULATION ❗
Answers
Answer:
=4Answer
Answer(i) The labelled diagram of the system of block and tackle system of pulleys is shown indicating clearly the points of application and direction of load and effort.
Answer(i) The labelled diagram of the system of block and tackle system of pulleys is shown indicating clearly the points of application and direction of load and effort.(ii) Given : Velocity ratio (V.R.)=4, Load =4T, Effort =T
Answer(i) The labelled diagram of the system of block and tackle system of pulleys is shown indicating clearly the points of application and direction of load and effort.(ii) Given : Velocity ratio (V.R.)=4, Load =4T, Effort =T
Mechanical advantage (M.A.)=
Effort/Load
Load
Load
Load = T/4T
4T
4T
4T =4
4T =4Hence, the mechanical advantage of the given pulley system is 4.
Hence, the mechanical advantage of the given pulley system is 4.
Explanation:
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