hello,(adsbygoogle = window.adsbygoogle || []).push({});

i'm having trouble with kinematic equations. i feel that i understand them, but when i get to a problem, i'm so confused. i can figure out what i have and what i don't have, but it's choosing the correct formula that is my main problem.

how do i know when to solve for what?

for example, i'm given speed of 25 m/s [acceleration is constant] and i know that the object comes to rest after 34 seconds and now i am asked to solve for distance

initial speed=25 m/s, final speed=0, time=34 s.

would i use x=1/2(final velocity + initial velocity)t?

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

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: Help with kinematic equations.

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