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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
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the unit of force and length are doubled, then unit of energy will be
- A current of 2 A is made to flow through a coil which has only one turn. The magnetic
- The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source,
- A 0.01 H inductor and √3 πΩ resistance are connected in series
- A body travels 200 cm in the first two seconds and 220 cm in the next 4 secs
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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