Question # 1

A man of 5000 kg moves with an acceralation of 1 ms-2 force acting on it is.

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5 N

500 N

50 N

5000 N

When speed of a body is doubled then its

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K.E. is doubled

P.E. is doubled

Acceleration of doubled

Momentum is doubled

Unit of acceleration is

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ms-1

ms

ms-2

m2s

Kg ms-1 can also be written as

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Nm

Ns

Ns-1

Js

The equations of motion hold good for

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Variable acceleration

Uniform acceleration

Centripetal acceleration

All of these

Rate of change of velocity is called

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Speed

Acceleration

Displacement

Torque

An athlete runs with a speed of 12 ms-1. Determine the longest jump he can undertake.

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12 m

14.4 m

24 m

16.2 m

A collision in which K.E. of the system is not conserved is

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Elastic collision

Inelastic collision

3rd low of motion

None of these

Food rich in proteins is:

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potato

grapes

vegetables

bread

In matter, the Atoms are in a state of never ending

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Motion

Rest

Change

State of decline

the acceleration along x -axis direction in case of projectile is.

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Zero

Equal to gravity

Maximum

Constant

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