Question

Two toy cars A and B are moving towards each other on a horizontal surface. The car A has mass of
60 g, and moves towards the right with a speed of 60 cm/s. The car B has a mass of 100 g and moves
towards the left with a speed of 20 cm/s. The two cars collide and get stuck to each other. With what
velocity will they move after the collision?​

Answer 1

Explanation:

m1 =60g

u1 = 60 cm / s

m2= 100 g

u2 = 20 cm / s

m1u1+ m2u2= m1 v1+ m2 v2

60×60+100×20=160×v

5600/160 =10m/s