Hi, i have some questions for the following problems.(adsbygoogle = window.adsbygoogle || []).push({});

A car accelerate at -1.9 m/s2. Traveling at a constant velocity of 32 m/s, this car comes up behind a car traveling at a constant velocity of11 m/s.

a) How close to the slower car can the driver of the faster car come before applying his brakes and still avoid a collision?

b) At what time does the inevitable collision of the two cars occur?

c) How far beyond its position at t = 0 does the slower car get before it is hit?

so the |a1| = 1.9 m/s2

v1 = 32 m/s

v2 = 11 m/s.

Since it accelerates in a negative direction then it is deccelerating at a constant rate. For every second the velocity with decrease by 1.9 until it crashes with the second car with has a constant velocity. Now I dont understand what the question is asking for part a)

Can anyone help? thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: One-Dimensional Kinematics problem

**Physics Forums | Science Articles, Homework Help, Discussion**