Kinematics-Average Speed and Instantaneous Velocity (NEET Physics): Questions 1 - 4 of 108

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Question number: 1

» Kinematics » Average Speed and Instantaneous Velocity

Assertion-Reason▾

Assertion (Ꭺ)

The velocity of a body A relative to the body B is the sum of the velocities of bodies A and B if both travel in opposite direction on a straight line.

Reason (Ꭱ)

The velocity of a body A relative to the body B is the difference of the velocities of bodies A and B if both travel in opposite direction on a straight line.

Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

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

c.

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

d.

Ꭺ is false but Ꭱ is true

Question number: 2

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A train of 150 meter length is going towards north direction at a speed of 10 m/s. A parrot flies at the speed of 5 m/s towards south direction parallel to the railway track. The time taken by the parrot to cross the train is

Choices

Choice (4) Response

a.

8 sec

b.

12 sec

c.

10 sec

d.

15 sec

Question number: 3

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passenger in the train is

Choices

Choice (4) Response

a.

East-north direction

b.

West-north direction

c.

South-east direction

d.

All of the above

Question number: 4

» Kinematics » Average Speed and Instantaneous Velocity

MCQ▾

Question

From the top of a multistoried building 40m tall, a boy projects a stone vertically upwards with an initial velocity of 10 ms -1 such that it eventually falls to the ground.

(1) After 4 s the stone will strike the ground

(2) After 2 s the stone will pass through the point from where it was projected

(3) Its velocity when it strikes the ground is 30 m/s

(4) Its velocity when it strikes the ground is 40 m/s

Choices

Choice (4) Response

a.

1, 2 and 3

b.

2 and 4

c.

1 and 3

d.

1 and 2

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