Question

How do i write x and y components of acceleration in terms of g and theta??

Answer 1

think about triangles, wich is the hypotenuse?
Then see wich side is wich to calculate sin and cos of theta
Isolating x and y from that you get the formulas

Answer 2

Or you could also look at the trigonometric circle and see that g is the radius and then theprojections would be just its lenght when the radius is 1 (sin and cos) multiplied by the radius

Answer 3

Im confused

Answer 4

ax=gcostheta
ay=gsintheta

like that??

Answer 5

@ivanmlerner

Answer 6

yes, thats it.

Answer 7

How do i draw the vector, if its on a ramp (projectile motion)

Answer 8

In the beginning of the motion, when it is being launched?

Answer 9

Or going down a ramp?

Answer 10

Its going down a ramp