1. Sep 26, 2007

### trustabdy

if an object is fired at a 20 degree angle and has a horizontal velocity of 30m/s, what is the vertical displacement, how long the ball is in the air, horizontal displacement, original velocity of the ball????

2. Sep 26, 2007

### trustabdy

help?

3. Sep 26, 2007

### hotvette

You need to show some work. Do you have any relevation equations for projectile motion?

4. Sep 26, 2007

### trustabdy

basic motion - free falling body. range is straight line

5. Sep 27, 2007

### hotvette

OK, so what are the applicable equations for basic motion - free falling body and how does that relate to the problem statement?

6. Sep 27, 2007

### trustabdy

if u help me find the initial velocity or time i could find the the problems myself

7. Sep 27, 2007

### hotvette

The easiest part is the initial velocity. You are given an angle and the horizontal component of the velocity. Draw a triangle and use some trig.

8. Sep 27, 2007

### trustabdy

okay i can't do t the trig and i have a test tommorow please show me how to do it

9. Sep 27, 2007

### trustabdy

never mind i got it. thanx for reminding me about the trig