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Olympiad workbook

Exam: Olympiad workbook
Subject: NSEP
Chapter: Rotational Motion

Olympiad workbook · NSEP · Rotational Motion

A body of mass 10 kg at rest explodes into two fragments of masses...

A body of mass 10 kg at rest explodes into two fragments of masses 3 kg and 7 kg . If the total kinetic energy of two pieces after explosion is 1680 J , the magnitude of their relative velocity in m/s after explosion is:

Options

A $40$
B $50$
C $70$
D $80$

Correct answer

A. $40$

Step-by-step solution

No solution

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