Question

A shell of mass m is at rest initially. It explodes into three fragments having mass in the ratio $2:2:1$. If the fragments having equal mass fly off along mutually perpendicular directions with speed v, the speed of the third (lighter) fragment is

• A. $v$
• B. $\sqrt2v$
• C. $2\sqrt2v$
• D. $3\sqrt2v$

Answer 1

Answer: (C)

$2\sqrt2v$

Answer 2

The correct option is (C): $2\sqrt2v$