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Standard X

Physics

Mechanical Advantage in Lever

A man uses a ...

Question

A man uses a crowbar of length $1.5 m$ to raise a load of $75 k g f$ by putting a sharp edge below the bar at a distance $1 m$ from his hand. Calculate the effort arm.

0.1 m

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1.0 m

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5 m

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0.5 m

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Solution

The correct option is B $1.0 m$
Effort arm is the distance between the effort applied (hand) and the fulcrum which is $1.0 m$ from the hand. Hence, effort arm is $1.0 m$

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A man uses a crowbar of length 1.5m to raise a load of 75kgf by putting a sharp edge below the bar at a distance 1m from his hand. Calculate the effort arm.

The correct option is B 1.0mEffort arm is the distance between the effort applied (hand) and the fulcrum which is 1.0m from the hand. Hence, effort arm is 1.0m

A man uses a crowbar of length $1.5 m$ to raise a load of $75 k g f$ by putting a sharp edge below the bar at a distance $1 m$ from his hand. Calculate the effort arm.

The correct option is B $1.0 m$
Effort arm is the distance between the effort applied (hand) and the fulcrum which is $1.0 m$ from the hand. Hence, effort arm is $1.0 m$