- #1

TeeNaa

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## Homework Statement

A car traveling 100 km/h is 200m away from a truck traveling 50 km/h (in the same direction)

. Assuming constant braking acceleration, what is the minimum deceleration the car must have if it is not to hit the truck?

## Homework Equations

I know acceleration is a = (Vf - vi)/t but I do not know how to get the acceleration/deceleration when there two object instead of just let a car moving.

## The Attempt at a Solution

I know the Vi of the Car is = 27.8 m/s

The Vf of the Car is 13.9 m/s (The acceleration of the truck is this so won't it be the final velocity of the car when it crash?)

Distance of car travel = 200+x

Distance of truck travel = x;

Can someone guide me in the right direction? Thanks