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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.
Related Questions: - Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- A block of mass M is attached to the lower end of a vertical spring
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
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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
- Two metal spheres of radii 0.01m and 0.02m are given a charge of 15mC and 45mC
- A block of mass M is attached to the lower end of a vertical spring
- The fossil bone has a ¹⁴C:¹²C ratio, which is [1/16] of that in a living animal
- The time period of a thin bar magnet in Earth’s magnetic field is T
- A common emitter amplifier gives an output of 3 V for an input of 0.01 V.
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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