A 100 Kg Mass, Initially at Rest, Is Blown Apart

Multiple Choice

A 100 kg mass, initially at rest, is blown apart into two 50.0 kg pieces. After the blast, the two masses are moving apart with a relative velocity of 100 m/s. The total kinetic energy after the explosion is

A) 8.42 × 10⁴ J.
B) 1.25 × 10⁵ J.
C) 3.62 × 10⁵ J.
D) 6.50 × 10⁵ J.
E) 1.24 × 10⁶ J.