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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
- If capillary experiment is performed in vaccum, then a liquid under the condition
- Two point charge +9e and +e are at 16 cm away from each other.
- For a satellite escape velocity is 11 kms⁻¹.If the satellite is launched at an angle
- Time taken by light to cross a glass slab of thickness 4 mm and refractive index 3 is
- A proton and helium nucleus are shot into a magnetic field at right angles to the field
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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