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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.
Related Questions: - A body of mass 3 kg acted upon by a constant force is displaced by S meter
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- A,B and C are voltmeters of resistance R, 1.5 R and 3R respectively, as shown
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A body of mass 3 kg acted upon by a constant force is displaced by S meter
- A uniform rope of length 12 m and mass 6 kg hangs vertically from a rigid support.
- A,B and C are voltmeters of resistance R, 1.5 R and 3R respectively, as shown
- The angular speed of earth, so that the object on equator may appear weightless
- A block of mass m is moving on a wedge with the acceleration aᵒ
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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