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B. 13. What i c. In a single movable pulley, a load of 500 N is lifted by applying 300 N effort Calculate MA, VR and n. [Ans: MA = 1.66, VR = 2, n = 8 83.33%]
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4 votes
B.

13. What i
c.
In a single movable pulley, a load of 500 N is lifted by applying 300 N effort
Calculate MA, VR and n.
[Ans: MA = 1.66, VR = 2, n = 8
83.33%]

User Dbschwartz
by
4.6k points

1 Answer

4 votes

Answer:

MA = 1.66, VR = 2, Efficiency = 83.33%

Step-by-step explanation:

Given the following

Load = 500N

Effort = 300N

Mechanical Advantage = Load/Effort

MA = 500/300

MA = 5/3 = 1.66

Velocity ratio is the number of pulleyc present in the block and tackle system. Since the pulley is a single movable pulley, then VR = 2

Efficiecncy n = MA/VR * 100%

n = 1.66/2 * 100

n = 166/2

n = 83.33%

User Markus Deibel
by
5.4k points
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