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▾
t (s) | 0 | 1 | 2 | 3 |
x (m) | -2 | 0 | 6 | 16 |
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 |
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 |
Question 33
Question MCQ▾
A particle moves as such acceleration is given by a = s3 sin 4t, then:
- The acceleration of the particle becomes zero after each interval of π/4 second
- The initial velocity of the particle must be zero
- The particle comes at its initial position after sometime
- 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 |
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 |