Laws of Motion (NEET Physics): Questions 80 - 83 of 116

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Question number: 80

» Laws of Motion » Laws of Friction

MCQ▾

Question

Two cars of unequal masses use similar tyres. If they are moving at the same initial speed, the minimum stopping distance -

Choices

Choice (4) Response

a.

is same for both cars

b.

is smaller for the heavier car

c.

is smaller for the lighter car

d.

Depends on the volume of the car

Question number: 81

» Laws of Motion » Laws of Friction

MCQ▾

Question

The work done by a person in carrying a box of mass 10 kg through a vertical height of 10 m is 4900 J. The mass of the person is -

Choices

Choice (4) Response

a.

60 kg

b.

130 kg

c.

50 kg

d.

40 kg

Question number: 82

» Laws of Motion » Force and Inertia

MCQ▾

Question

Choose the correct statements -

(1) For equilibrium of a body under the action of concurrent forces

(2) If the downward acceleration of the lift is a = g, then the body will experience weightlessness.

(3) If the downward acceleration of the body is a > g, then the body will rise up to the ceiling of lift

(4) If the downward acceleration of the lift is a > g, then the body will experience weightlessness.

Select the correct answers and mark it according to the following codes:

Choices

Choice (4) Response

a.

1 and 2 are correct

b.

1, 2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

Question number: 83

» Laws of Motion » Newton's Law » Newton's Second Law of Motion

MCQ▾

Question

Conservation of linear momentum is equivalent to-

Choices

Choice (4) Response

a.

Newton ‘s first law of motion

b.

Newton’s second law of motion

c.

Newton ‘s third law of motion

d.

Conservation of angular momentum.

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