I need help with this problem using the kinematic equations. My professor gave me the answer to this problem and wants to know the steps to achieve this answer.(adsbygoogle = window.adsbygoogle || []).push({});

This is the example:

The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows uniformly with an acceleration of -5.60 m/s^2 for 4.20 s, making straight skid marks 62.4 m long ending at the tree. With what speed does the car then strike the tree?

The professor's answer is:

The speed is 3.10 m/s.

Thank you in advance for taking the time to help me!

--Dan

**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: Calculating Speed with Kinematics

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