Question

a truck of mass 20000 kg travelling at 1.5 m/s collides with another truck of mass 30000 kg moving with a velocity of 2.5 m/s in opposite direction of the trucks couple on collision . What is their velocity​

Answer 1

Answer:

-0.9 m/s w.r.t. 30000 kg truck

Explanation:

Applying conservation of momentum,

v = ((m1*v1) - (m2*v2)) / (m1 + m2)

v= -0.9 m/s

Both trucks will move in direction of 30000 kg truck.