Asked by eileen

A 1000 kg car is rolling down the street at 2.5 m/s. How fast would a 2500 kg car have to collide into it in order to bring it to rest (0 m/s)?

Answers

Answered by Damon
initial momentum = 1000*2.5 + 2500 * v = final momentum = 0

v = - 2500/2500 = -1 m/s
Answered by drwls
Use momentum conservation and assume the cars stick together.
1000*2.5 - (2500)*V = 0
V = 1.0 m/s
There are no AI answers yet. The ability to request AI answers is coming soon!

Related Questions