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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
- If rope of lift breaks suddenly, the tension exerted by the surface of the lift
- The displacement ‘x’ (in meter) of a particle of mass ‘m’ (in kg) moving in one
- There are four light-weight-rod samples A,B,C,D seperately suspended by threads
- If L and C denote inductance and capacitance,then the dimensions of L-C are
- The distance travelled by a particle starting from rest and moving
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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