Two particles of masses `m_(1)` and `m_2` in projectile motion have velocities `vecv_(1)` and `vecv_(2)` respectively at time t = 0. They collide at time `t_(0)`. Their velocities become `vecv_(1)` and `vecv_(2)` at time `2t_(0)` while still moving in air. The value of `|(m_(1)vecv_(1) + m_(2)vecv_(2)) -(m_(1)vecv_(1) + m_(2)vecv_(2))|` is

Options

A. zero
B. `(m_(1) + m_(2))g t_(0)`
C. `2(m_(1) + m_(2))g t_(0)`
D. `1/2(m_(1) + m_(2))g t_(0)`

Answer

C