Recent content by panchoman

Wnc is (mu)(normal)(d) Why is your d in the Efinal term? It should be in your first term. D=(86.03-10.95)/52.169

The crate exerts a westward force on the truck to prevent it from sliding. Now, Newtons 3rd law suggests that there must be an equal and opposite force, in this case, the truck will be applying an eastward force on the crate with the same magnitude. It's one of the weirs things that are hard to...

tangent and opposite to the way which the rope will move, so if the rope will move to the right, then the force of friction will also be tangent to the same point where the rope is moving(top of the pulley), and will be pointed to the left.. someone correct me if I'm wrong..

divide Wnc by the energy that it should've had (with the 43.1 m/s velocity, .5m(43.1)^2) and then multiply by 100

isn't not elastic. Whenever objects stick together, it's usually not elastic. what you need to do it calculate the ideal energy (had it been elastic), and then calculatue the actual energy of the system, and subtract the two to figure out how much energy was actually lost

1/3 m L^2

Homework Statement Here is the problem, from mastering physics: Given description: Suppose the opening in the tank of the figure is a height y1 above the base and the liquid surface is a height y2 above the base. The tank rests on level ground. Question 1: At what horizontal...