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Solution for A Single Fixed Pulley is Used Because It: (A) Has a Mechanical Advantage Greater than 1. (B) Has a Velocity Ratio Less that 1 (C) Gives 100% Efficiency (D) Helps to Apply the Effort in a Convenient - ICSE Class 10 - Physics

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Question

A Single fixed pulley is used because it:
(a) has a mechanical advantage greater than 1.
(b) has a velocity ratio less that 1
(c) gives 100% efficiency
(d) helps to apply the effort in a convenient direction.

Solution

It helps in applying effort in a convenient direction.
Explanation: A single fixed pulley though does not reduce the effort but helps in changing the direction of effort applied. As it is far easier to apply effort in downward direction, the single fixed pulley is widely used.

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Solution A Single Fixed Pulley is Used Because It: (A) Has a Mechanical Advantage Greater than 1. (B) Has a Velocity Ratio Less that 1 (C) Gives 100% Efficiency (D) Helps to Apply the Effort in a Convenient Concept: Concept of Pulley System.
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