# Motion problem when acceleration is constant

1. Sep 10, 2008

### brsullivan

1. The problem statement, all variables and given/known data
A coin, initially at rest is dropped from an elevated position and freely falls to the ground with an acceleration of 10m/s/s.
a) How fast is the coin traveling after 2 sec b) How fast is the coin traveling after 5 seconds
c) How far does the coin fall after 2 sec d) How far does the coin fall after 5 sec
e) How much time does it take the coin to fall 5m f) How much time does it take the coin to fall 10m g) What is the velocity of the coin after it has fallen 5 m h) What is the velocity of the coin after it has traveled 10m i) A feather is dropped at the same time as the coin and falls with an acceleration of 3.0 m/s/s (due to air resistance). What is the speed of the feather after the coin has fallen 5m

2. Relevant equations
I don't know

3. The attempt at a solution
I am terrible at physics and have absolutely no idea what to do. I don't even know where to start. I am a high school student in college physiscs...so yeah.

2. Sep 11, 2008

### rl.bhat

Go through any physics text book and find out the relevant equations.