Besides the gravitational force, a 3.35-kg object is subjected to one other constant force. The object starts from rest and in 1.20 s experiences a displacement of (4.55i hat − 3.30j hat) m, where the direction of j hat is the upward vertical direction. Determine the other force.

Question

theeric · Answer

I haven't worked through it yet, but we know that we can write the force of gravity as a vector.

Does $F_g$ seem like an appropriate variable?

And I want to say that $F_?$ is an appropriate variable for the other force :P

theeric · Answer

Are you there?

theeric · Answer

Well, then I don't know how to best help you!

Here's how I went about it.

I figured out what I knew and what I didn't. A picture and a list might help you!

Then I realized that I could use a fundamental kinematic equation with constant acceleration as an assumption.

You can solve for the acceleration, and relate it to the net force using an equation with mass.

Lastly, you can solve for the mystery force and calculate it.