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Question

Choose the correct statement:

Statement 1: A body moves along the direction of force.

Statement 2: A body moves in the direction of velocity.

Statement 3: Forces acting inside the system are called pseudo forces.

Statement 4: Forces acting outside the system are called external forces.


A

All statements are correct.

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B

Except statement 2, all other statements are correct.

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C

Except statement 2 and 3, all other statements are correct.

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D

Only statement 2 and 4 are correct.

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Solution

The correct option is D

Only statement 2 and 4 are correct.


When we apply break to a moving vehicle, it moves opposite to the direction of the frictional force. Hence, statement 1 is not correct.
The direction of motion of a body is always in the direction of linear velocity is the correct statement because velocity is the rate of change of displacement and direction of displacement depends on the direction in which a body moves.
Statement 3 is incorrect because forces acting inside the system are called internal forces.
Statement 4 is correct.


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