Question

PLEASE HELP: A 1400 kg car moving +13.7 m/s makes an elastic collision with a 3200 kg truck, initially at rest. What is the velocity of the truck after the collision? (Unit = m/s) remember: right is +, left is -

Answer 1

8.339

Step-by-step explanation:

Answer 2

`8.339\ m/s`

Step-by-step explanation:

Given :

`m1= 1400 kg \\v1=13.7 m/s\\m2=3200 kg \\v2=0`

We know that for the elastic collision

`V2=(2m1v1)/(m1+m2) \ + (m2-m1 * v2)/(m1+m2)`

Putting the respective value we get

`V2=(2*1400*13.7)/(1400+3200) \ + 0\\ V2=8.339\ m/s`