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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
- An LED is constructed from a p-n junction based on a certain semi-conducting
- Energy of photon whose frequency is 10¹² MHz will be
- Perfectly black body radiates the energy 18 J/s at 300K. Another ordinary body of e=0.8
- The dimensions of pressure are equal to those of
- Excitation energy of a hydrogen like ion, in its first excitation state, is 40.8 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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