Question -
Answer -
Given, mass of theobjects (m1 and m2) = 1.5kg
Initial velocity ofthe first object (u1) = 2.5 m/s
Initial velocity ofthe second object which is moving in the opposite direction (u2) =-2.5 m/s
When the two massesstick together, the resulting object has a mass of 3 kg (m1 + m2)
Velocity of theresulting object (v) =?
As per the law ofconservation of momentum, the total momentum before the collision is equal tothe total momentum after the collision.
Total momentum beforethe collision = m1u1 + m2u2
= (1.5kg) (2.5 m/s) +(1.5 kg) (-2.5 m/s) = 0
Therefore, totalmomentum after collision = (m1+m2) v = (3kg) v = 0
Therefore v = 0
This implies that theobject formed after the collision has a velocity of 0 meters per second.