Recent content by joyce1029

What if I was calculating net force with the mass and acceleration? So say I have a 2kg object moving right and I set right to be positive. If the object is slowing down and I calculate the acceleration to be -5 m/s^2 and I'm told to solve for net force, would I take the absolute value of the...

So since I'm used to calculating the net force as the forces in the positive direction minus the forces in the negative direction (N-mg in this example), can I always keep everything positive(N,m,g)?

You walk into an elevator, step on a scale, and push the "up" button. You recall that your normal weight is 625N. If the elevator has an acceleration of magnitude 2.50 m/s^2, what does the scale read? I know how to solve this problem, but I don't know why I'm getting the wrong answer. I first...