- 39

- 0

This isn't a problem, but I need help understanding this so I can do problems.

http://img255.imageshack.us/img255/3479/xythingat6.png [Broken]

So let's say...

1. This is part of the motion of a projectile

2. You're trying to find x and y

There are trig. identities that will give you x and y.

x = sin(36)*10

y = cos(36)*10

http://img255.imageshack.us/img255/3479/xythingat6.png [Broken]

So let's say...

1. This is part of the motion of a projectile

2. You're trying to find x and y

There are trig. identities that will give you x and y.

__Example__:x = sin(36)*10

y = cos(36)*10

**My question is... Which trig. identity/function do you use to solve for***x*, and why do you use that identity? Also explain the same thing for*y*. Please and thank you.
Last edited by a moderator: