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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
- A body starts from rest with an acceleration of 2 m/s². After 5 second,
- What is the voltage gain in a common-emiiter amplifier, when input resistance is 4 Ω
- Energy of all molecules of a monoatomic gas having a volume V and pressure P is 3PV/2.
- Two solid discs of radii r and 2r roll from the top of an inclined plane
- A block of mass m moving at a velocity v collides with another block of mass 2m
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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