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An explosion blows a rock into three parts. Two parts go off at right angles to each other. These two are, 1 kg first part moving with a velocity of 12 ms⁻¹ and 2 kg second part moving with a velocity of 8 ms⁻¹. If the third part flies off with a velocity of 4 ms⁻¹, its mass would be:
Options
(a) 7 kg
(b) 17 kg
(c) 3 kg
(d) 5 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
- The dimensions of magnetic field intensity B are
- A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
- What are the unit of K = 1 / (4 π ?￢ﾂﾒ)
- A monoatomic gas is suddenly compressed to (1/8)th of its initial volume adiabatically.
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
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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