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A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when it returns to the ground will be
Options
(a) zero
(b) 30%
(c) 60%
(d) 100%
Correct Answer:
zero
Explanation:
In case of projectile motion,
K.E. at projection = K.E. at landing on ground.
Hence there is no change in K.E.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Angular momentum of the particle rotating with a central force is constant due to
- If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is
- A boat of mass 40 kg is at rest.A dog of mass 4 kg moves in the boat
- The maximum particle velocity in a wave motion is half the wave velocity.
- Photons of 5.5 eV energy fall on the surface of the metal emitting photoelectrons
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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