Recent content by princess7115

awesome, thank you for your help

I got it. I just added the radii together. Because I figured if it didn't tell me how far apart the spheres were, I had to assume they were next to each other.

i'm not sure, I really don't get it. I just know that I'm supposed to use r and in every other problem, they give it to me and I don't know why I have two distances.

Oh...and how do I know when friction plays a part in the problem.

Well I'm yet again doing something wrong so before I go any furthur, are the forces acting on the bike the 3150 N and W=2861.1. Shouldn't there be a force opposing weight which is the force from the road? But I don't know how to figure that.

I know this is stupid but can you tell me what it means to find the net force going up the ramp.

Still Confused I'm super confused. I got lost after you said find weight. Isn't weight mg? So that would be 6*9.8=58.8N, but I don't know where to go from there. Where does the .360 come in?

A bowling ball (mass=7.2 kg, radius=0.11m_ and a billiard ball (mass=.38kg, radius= .082m) may each be treated as uniform spheres. What is the magnitude of the maximum gravitational force that each can exert on the other? I figured I was supposed to use F=Gm1m2/r^2 but I didn't know how to...

A 292 kg motor cycle is accelerating up along a ramp that is inclined 30.0 degrees above the horizontal. The propulsion force pushing the motorcycle up the ramp is 3150 N, and air resistance produces a force of 250 N that opposes the motion. Find the magnitude of the motorcycle's acceleration.

A 6.00 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.360. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, (b) accelerating upward with an acceleration whose...