Kinematics-Motion in a Straight Line [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 31 - 34 of 65

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Question 31

Question MCQ▾

The X-Axis at Certain Times is Given Below
t (s)0123
x (m)-20616

Which of the following describes the motion correctly

Choices

Choice (4)Response

a.

Uniform, decelerated

b.

Uniform, accelerated

c.

Non-uniform, accelerated

d.

All of the above

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Question 32

Question MCQ▾

A particle moving in a straight line covers half the distance with speed of 10 m/s. The other half of the distance is covered in two equal time intervals with speed of 5.5 m/s and 4.5 m/s respectively. The average speed of the particle during this motion is

Choices

Choice (4)Response

a.

24 m/s

b.

15 m/s

c.

25 m/s

d.

10 m/s

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Question 33

Question MCQ▾

A particle moves as such acceleration is given by a = s3 sin 4t, then:

  1. The acceleration of the particle becomes zero after each interval of π/4 second
  2. The initial velocity of the particle must be zero
  3. The particle comes at its initial position after sometime
  4. The particle must move on a circular path

Choices

Choice (4)Response

a.

2 and 4

b.

1 and 3

c.

1,2, 3

d.

1 and 2

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Question 34

Question Assertion-Reason▾

Assertion(Ꭺ)

A body having non-zero acceleration can have a constant velocity.

Reason(Ꭱ)

Acceleration is the rate of change of velocity.

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

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

d.

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

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