Question

A truck of mass 1500 kg collides with another truck of Mass 1000 kg both truck are moving with the same velocity of 30 metre per second is opposite direction after collision both truck stick together for a while calculate the combing velocity of both truck.​

Answer 1

Answer:

Mass of first truck , m

1

=500kg

Speed of first truck, u

1

=4m/s

Mass of second truck, m

2

=1500kg

Speed of second truck, u

2

=2m/s

Combined mass of both trucks, m=1500+500=2000kg

Combined velocity v

Acc.to the low of conservation of momentum

m

1

u

1

+m

2

u

2

=mv

500×4+1500×2=2000×v

v=

2000

2000+3000

=2.5m/s