- #1

- 31

- 0

## Homework Statement

Two forces, vector F 1 = (4i+ 6j) N and vector F 2 = (4i+ 8j) N, act on a particle of mass 1.90 kg that is initially at rest at coordinates (+1.95 m, -3.95 m).

a)What are the components of the particle's velocity at t = 10.3 s?

b) In what direction is the particle moving at t = 10.3 s?

(c) What displacement does the particle undergo during the first 10.3 s?

(d) What are the coordinates of the particle at t = 10.3 s?

## Homework Equations

## The Attempt at a Solution

For part a I tried dividing by the mass of the object to get Newtons to cancel to m/s^2

I also tried adding the two forces together, and adding -F2 to +F1 because in my textbook it says that once force is basically the opposite of the other

All of those were wrong

For part b, I took the arctan of 1.95 and -3.95 to get 63.7° but webassign said I was around 10% off on my answer

I haven't been able to do c or d yet

Any help or understanding as to what I did wrong would be greatly appreciated