Question

A 725 kg car that is moving with 14 m/s hit a truck of mass 2750 kg moving at 17 m/s in the opposite direction.

What is the velocity of the car after impact if the car and truck lock together?

PLEASE HELP ASAP

Answer 1

16.4 m/s

Step-by-step explanation:

725*14+2750*17=

10150+46750=56900

56900=(725+2750)*v ==> v, velocity, is what we're solving for

56900=3475v

56900/3475=3475v/3475

v=16.374 m/s

v=16.4 m/s