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A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point
Options
(a) The momentum changes by mv
(b) The momentum changes by 2mv
(c) The kinetic energy changes by 1/2 mv²
(d) The kinetic energy changes by mv²
Correct Answer:
The momentum changes by 2mv
Explanation:
The diametrically opposite points, the velocities have same magnitude but opposite directions. Therefore, change in momentum is MV – (- MV) = 2MV.
Related Questions: - A block of mass M is attached to the lower end of a vertical spring
- A solid sylinder of mass 3 kg is rolling on a horizontal surface with velocity 4 ms⁻¹
- Van der waals,equation of state is(p+a/v²)(V-b)=nRT. The dimensions of a and b
- Which one of the following is not a unit of young’s modulus?
- The magnetic field due to a current carrying circular loop of radius 3 cm at a point
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A block of mass M is attached to the lower end of a vertical spring
- A solid sylinder of mass 3 kg is rolling on a horizontal surface with velocity 4 ms⁻¹
- Van der waals,equation of state is(p+a/v²)(V-b)=nRT. The dimensions of a and b
- Which one of the following is not a unit of young’s modulus?
- The magnetic field due to a current carrying circular loop of radius 3 cm at a point
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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