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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 bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- If the earth shrink such that its mass does not change but radius decreases to one
- An ideal black body is equivalent to
- MA⁻¹T⁻² is the dimensional formula of
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bar magnet having a magnetic moment of 2 x 10⁴JT⁻¹ is free to rotate in a horizontal
- The tension in a piano wire is 10 N. What should be the tension in the wire to produce
- If the earth shrink such that its mass does not change but radius decreases to one
- An ideal black body is equivalent to
- MA⁻¹T⁻² is the dimensional formula of
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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