- #1

KristinaMr

- 11

- 1

## Homework Statement

A particle is moving clockwise in a circle of radius 2.50m at a given instant of time.

I have to find radiant and tangential acceleration and the speed of the particle.

The acceleration vector is 15.0 m/s² and the angle between the radius and the acceleration vector is 30°

## Homework Equations

a tangential=∆v/∆t

a radial =v²/r

a =√at²+ar²

θ=?

## The Attempt at a Solution

I tried finding the acceleration components but I was not able to use the data given in a proper way. I'm sure there is an equation involving the angle but I'm not sure which one it is.

I would use θ=tan^-1( at/at) but it results in two unknowns . I'm stuck on this probably easy problem. I need someone who knows the right equations to use.

Thank you