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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
- The voltage of an a.c.supply varies with time (t) as V=120 sin 100 πt the maximum voltage
- A particle moves along the x-axis from x=0 to x=5 m under the influence of a force
- A step-up transformer operates on a 230 V line and supplies a current of 2 A.
- A block of mass m is moving on a wedge with the acceleration aᵒ
- The body of mass m hangs at one end of a string of length l, the other end of which
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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