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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
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- Two slits in Young’s experiment have widths in the ratio 1:25. The ratio of intensity
- An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰
- A body of mass M hits normally a rigid wall with velocity V and bounces back
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
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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