Kinematics-Uniformly Accelerated Motion [NEET (2024 Updated)-National Eligibility cum Entrance Test (Medical) Physics]: Questions 1 - 5 of 48
Choose Programs:
📹 Video Course 2024 (8 Lectures [3 hrs : 4 mins]): Offline Support
Rs. 100.00 -OR-
1 Month Validity (Multiple Devices)
Preview All LecturesDetails
⏳ 🎯 Online Tests (5 Tests [50 questions each]): NTA Pattern, Analytics & Explanations
Rs. 500.00 -OR-
3 Year Validity (Multiple Devices)
Sample TestsDetailsSee Demo
🎓 Study Material (575 Notes): 2024-2025 Syllabus
Rs. 650.00 -OR-
3 Year Validity (Multiple Devices)
Topic-wise Notes & SampleDetails
🎯 5119 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Rs. 750.00 -OR-
3 Year Validity (Multiple Devices)
CoverageDetailsSample Explanation
Help me Choose & Register (Watch Video) Already Subscribed?
Question 1
Question MCQ▾
The shaft of an electric motor starts from rest and on the application of a torque, it gains an angular acceleration given by a = 3t – t3 during the first 2 seconds after it starts after which a = 0. The angular velocity after 6 sec will be –
Choices
Choice (4) | Response | |
---|---|---|
a. | 2 rad/sec | |
b. | 1 rad/sec | |
c. | 4 rad/sec | |
d. | 3 rad/sec |
Question 2
Question MCQ▾
The shaft of an electric motor starts from rest and on the application of a torque, it gains an angular acceleration given by a = 3t – t2 during the first 2 seconds after it starts after which a = 0. The angular velocity after 6 sec will be –
Choices
Choice (4) | Response | |
---|---|---|
a. | rad/sec | |
b. | rad/sec | |
c. | rad/sec | |
d. | rad/sec |
Question 3
Question MCQ▾
Using rectangular co-ordinates and the unit vectors i and j, the vector expression for the acceleration a will be (r is a position vector) -
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | -2 r | |
c. | -2r2 | |
d. | r2 |
Question 4
Question MCQ▾
The angular velocity of a particle is given by co = 1.51 - 3t2 + 2, the time when its angular acceleration decreases to be zero will be -
Choices
Choice (4) | Response | |
---|---|---|
a. | 25 sec | |
b. | 1.2 sec | |
c. | 0.25 sec | |
d. | 12 sec |
Question 5
Question Assertion-Reason▾
Assertion(Ꭺ)
In non-uniform circular motion, velocity vector and acceleration vector are not perpendicular to each other.
Reason(Ꭱ)
In non-uniform circular motion, particle has normal as well as tangential acceleration.
Choices
Choice (4) | Response | |
---|---|---|
a. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
b. | Ꭺ is true but Ꭱ is false | |
c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
d. | Both Ꭺ and Ꭱ are false |