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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 circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
- Two cities are 150 km apart. Electric power is sent from one city to another city
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
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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 circuit area 0.01 m² is kept inside a magnetic field which is normal to its plane.
- Two cities are 150 km apart. Electric power is sent from one city to another city
- A body is thrown vertically up with a velocity u.It passes three points A,B and C
- A car wheel is rotated to uniform angular acceleration about its axis
- The current in a self-inductance L=40 mH is to be increased uniformly from 1A to 11 A
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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