# Physics homework help

## URGENT: Physics homework

3 physics questions attached in the post, please read them before talking to me so we be in the same page. the homework due is after an hour. If you can handle it , please contact me.

## URGENT: Physics homework

5 physics questions attached in the post, please read them before talking to me so we be in the same page. the homework due is after an hour. If you can handle it , please contact me.

## physics help

1. A car a mass of 400-kg travels at 20 m/s. teh car collides with a stationary truck of mass 1600-kg. The two vehicles interlock as a reslt of teh collision. what is the velocity of the car-truck system?

Equation:

numbers plugged in:

Simplify:

Solve:

velocity after collision in units:

2. a 50-kg projectile leaves a 2000-kg launcher with a velocity of 800 m/s forward. What is teh recoil velocity of the launcher?

Equation:

Simplify:

Solve:

Numbers plugged in:

Velocity after collision in units: