The machine which is responsible for changing the direction of application of force:

Screw

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pulley

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Wedge

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See-saw

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Solution

The correct option is B
pulley

Wedge and screw are a modified form of an inclined plane. See-saw is a type of class I lever. Pulley is a simple machine used to change the direction of force applied to lift the load.

Example: Lifting water from a well using a pulley. In the above case even though we apply force in the downward direction the load( bucket full of water) is moving in the direction opposite to the direction of application of force.

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Similar questions

Name a machine for each of the following use :

(a) to multiply the force,

(b) to change the point of application of force,

(d) to obtain the gain in speed.

Identify the simple machine which is commonly used for changing the point of application of force.

Give one example of a machine for the use of changing the point of application of force.

Give one example of a machine for the use of changing the direction of force.

Name a machine which is used to change the direction of the force.

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