A body of mass 1 kg initially at rest explodes and breaks into three fragments of masses in the ratio 1 : 1 : 3. The two pieces of equal mass fly off perpendicular to each other with a speed of 30 m/sec each. What is the velocity of the heavier fragment?

A body of mass 1 kg initially at rest explodes and breaks into three f

1.	A body of mass 1 kg initially at rest explodes and breaks into three fragments of masses in the ratio 1 : 1 : 3. The two pieces of equal mass fly off perpendicular to each other with a speed of 30 m/sec each. What is the velocity of the heavier fragment?
A.	\[10\sqrt{2}\,m/s\]
B.	\[15\sqrt{2}\,m/s\]
C.	\[5\sqrt{2}\,\,m/s\]
D.	\[20\sqrt{2}\,\,m/s\]
Answer» B. \[15\sqrt{2}\,m/s\]