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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
- A 70 kg man stands in contact against the inner wall of a hollow cylindrical drum
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- If A=4i+4j+4k and b=3i+j+4k, then angle between vectors A and B is
- Order of e/m ratio of proton, α-particle and electron is
- A spring balance is attached to the ceiling of a lift.A man hangs his bag on the spring
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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