Question

Pls answer


A block and tackle system has velocity ratio 3. Draw
a labelled diagram of the system indicating the
points of application and the directions of load L and
effort E. A man can exert a pull of 200 kgf. (a) What
is the maximum load he can raise with this pulley
system if its efficiency is 60% ? (b) If the effort end
moves a distance 60 cm, what distance does the load
move ?
Ans. (a) 360 kgf (b) 20 cm.​

Answer 1

Answer:

A block and tackle system has the velocity ratio = 3 i.e., VR = n = 3 Efficiency of system η = 60% = 0.6 The mechanical advantage of the system MA. = V.A × η = 3 × 0.6 = 1.8 Man can exert a maximum effort = 200 kgf Load = M.A. × effort = 1.8 × 200 = 360 kgfRead more on Sarthaks.com - https://www.sarthaks.com/145267/block-tackle-system-the-velocity-ratio-draw-labelled-diagram-the-system-indicating-points

Explanation:

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