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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: - The excitation potential of hydrogen atom in the first excited state is
- Which of the following is or the property of a cathode ray
- The ionisation energy of an electron in the ground state of helium atom is 24.6 eV.
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- A body initially at rest is moving with uniform acceleration a m/s²
Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The excitation potential of hydrogen atom in the first excited state is
- Which of the following is or the property of a cathode ray
- The ionisation energy of an electron in the ground state of helium atom is 24.6 eV.
- A thin circular ring of mass M and radius R rotates about an axis through its centre
- A body initially at rest is moving with uniform acceleration a m/s²
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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