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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.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The escape velocity of a body on an imaginary planet which is thrice the radius
- Diameter of the objective of a telescope is 200 cm. What is the resolving power
- A radiotransmitter radiates 1 kW power at a wavelength 198.6 m. How many photons
- In a double slit experiment, the two slits are 1mm apart and the screen is placed 1 m
- If the band gap between valence band and conduction band in a material is 5.0 eV,
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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