Laws of Motion (AIIMS Physics): Questions 4 - 9 of 17

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Question number: 4

» Laws of Motion » Centripetal Force

MCQ▾

Question

A body of mass 5 kg is moving in a circle of radius 1 m with an angular velocity of 2radians . The centripetal force is –

Choices

Choice (4) Response

a.

40 N

b.

10 N

c.

30 N

d.

20 N

Question number: 5

» Laws of Motion » Law of Conservation of Linear Momentum

MCQ▾

Question

A bullet of mass m and moving with velocity v is fired into a block of mass M and stick to it. The final velocity would be

Choices

Choice (4) Response

a.

MM+mv

b.

M+mmv

c.

mm+Mv

d.

mvM

Question number: 6

» Laws of Motion » Law of Conservation of Linear Momentum

MCQ▾

Question

A bullet is fired from a rifle recoils freely, then K. E. of the rifle is: -

Choices

Choice (4) Response

a.

Equal to that of bullet

b.

Less than that of bullet

c.

Greater than that of bullet

d.

None of the above

Question number: 7

» Laws of Motion » Equilibrium of Concurrent Forces

MCQ▾

Question

The forces, which meet at one point but their lines of action do not lie in one plane, are called:

Choices

Choice (4) Response

a.

Non-coplanar and non-concurrent forces

b.

Coplanar and non-concurrent forces

c.

Coplanar and concurrent forces

d.

Non-coplanar and concurrent forces

Question number: 8

» Laws of Motion » Law of Conservation of Linear Momentum

MCQ▾

Question

A gun of weight of 10 kg fires a shot of 0.5 g with a velocity 230ms . Velocity of recoil gun is: -

Choices

Choice (4) Response

a.

1.51cms

b.

1.10cms

c.

1.5cms

d.

1.15cms

Question number: 9

» Laws of Motion » Laws of Friction

Appeared in Year: 2008

Assertion-Reason▾

Assertion (Ꭺ)

Angle of repose is equal to the angle of limiting friction.

Reason (Ꭱ)

When the body is just at the point of motion, the force of friction in this stage is called limiting friction.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

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