Question

two objects each of mass 1.5kg are moving in the same straight line in but in opposite direction . The velocity of each object is 2.5m/s before the collision during which they stick together .The velocity of the combined object after collision is​

Answer 1

Explanation:

M1 = m2 = 1.50 kg

v1 = 2.50 m/sec

v2 = - 2.50 m/sec

m1 v1 + m2 v2 = (m1 + m2) v

1.50 * 2.50 - 1.50 * 2.50 = 0 => v = 0

So the combined momentum is zero. so v = 0

Answer 2

Explanation:

M1 = m2 = 1.50 kg

v1 = 2.50 m/sec

v2 = - 2.50 m/sec

m1 v1 + m2 v2 = (m1 + m2) v

1.50 * 2.50 - 1.50 * 2.50 = 0 => v = 0

So the combined momentum is zero. so v = 0