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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
- The workdone in turning a magnet of magnetic moment M by an angle of 90⁰ from the magnetic
- A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.
- The radius of the first orbit of the hydrogen atom is a₀. The radius of the second orbit
- Electromagnetic induction is not used in
- A rocket is fired upward from the earth surface such that it creates an acceleration
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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