contestada

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 -

Respuesta :

Answer:

[tex]8.339\ m/s[/tex]

Explanation:

Given :

[tex]m1= 1400 kg \\v1=13.7 m/s\\m2=3200 kg \\v2=0[/tex]

We know that for the elastic collision

[tex]V2=\frac{2m1v1}{m1+m2} \ + \frac{m2-m1 * v2}{m1+m2}[/tex]

Putting the respective value we get

[tex]V2=\frac{2*1400*13.7}{1400+3200} \ + 0\\ V2=8.339\ m/s[/tex]

Otras preguntas