Home
Class 9
PHYSICS
Assertion: The rate of change of momentu...

Assertion: The rate of change of momentum
Reason: Speed is a constant in uniform circular motion

A

IF both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If assertion is false but reason is true

Text Solution

Verified by Experts

The correct Answer is:
D
An external centripetal force is required to move an object uniformly in a circular path . The speed remains same and thus the magnitude of change in momentum, `Delta p` is zero. But the rate of change of momentum `((Delta p)/(Delta t))` is not zero.
Promotional Banner

Topper's Solved these Questions

  • FORCE AND LAWS OF MOTION

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (COMPREHENSION TYPE )|5 Videos

  • FORCE AND LAWS OF MOTION

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (VERY SHORT ANSWER QUESTION)|15 Videos

  • FORCE AND LAWS OF MOTION

    MTG IIT JEE FOUNDATION|Exercise EXERCISE (MATCH THE FOLLOWING )|2 Videos

  • FOOTSTEPS TOWARDS NEET

    MTG IIT JEE FOUNDATION|Exercise Multiple Choice Question|45 Videos

  • GRAVITATION

    MTG IIT JEE FOUNDATION|Exercise Olympiad/HOTS Corner|20 Videos

Similar Questions

Explore conceptually related problems

What remains constant in uniform circular motion ?

What changes continuously in uniform circular motion ?

Which of the following quantities remains constant during uniform circular motion ?

The rate of change of angular displacement in uniform circular motion is .

These questions consists of two statements each printed as Assertion and Reason. While answering these question you are required to choose any one of the following five reponses (a) If both Assertion and Reason arecorrect and Reason is the correct explanation of Asserrtion. (b) If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion. (c ) If Assertion is true but Reason is false. (d) If Assertion is false but Reason is true. Assertion In projectile motion, the rate of change in magnitude of potential energy of a particle first decreases and then increases during motion. Reason In projectile motion, the rate of change in linear momentum of a particle remains constant during motion.

The rate change of angular velocity w.r to t in uniform circular motion is a

Regarding linear momentum of a body (a) It is a measure of quantity of motion contained by the body (b) Change in momentum is the measure of impulse (c ) Impulse and acceleration act in opposite direction to the change im momentum (d) In the case of uniform circular motion the linear momentum is conserved .

In the following questions a statement of assertion (A) is followed by a statement of reason ( R). A : A uniform circular motion have non uniform acceleration . R: The direction of acceleration of a particle in uniform circular motion changes continuously .