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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: - Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
- The ionisation potential of hydrogen-atom is -13.6 eV. An electron in the groundstate
- In an electrical circuit R,L,C and an AC voltage source are all connected in series.
- A concave lens of focal length f forms an image which is 1/3 times the size
- Two nuclei are said to be mirror nuclei of
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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