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An explosion breaks a rock into three parts in a horizontal plane. Two of them go off at right angles to each other. The first part of mass 1 kg moves with a speed of 12 ms⁻¹ and the second part of mass 2 kg moves with speed 8 ms⁻¹. If the third part flies off with speed 4 ms⁻¹ then its mass is
Options
(a) 5 kg
(b) 7 kg
(c) 17 kg
(d) 3 kg
Correct Answer:
5 kg
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Radii of curvature of a converging lens are in the rato 1:2. Its focal length
- If a charge on the body is 1nC, then how many electrons are present on the body?
- The magnetic field in a certain region of space is given by B =8.35×10⁻² Î T.
- In a discharge tube ionization of enclosed gas is produced due to collisions between
- In the Young’s double slit experiment, the intensity of light at a point on the screen
Topics: Work Energy and Power (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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