Recent content by Arbitrary

Homework Statement A powerful, 100-kg man is kneeling in the middle of a frozen lake, holding two large rocks. One rock has a mass of 25 kg, and the other a mass of 15 kg. The man wants to quickly get to the south edge of the lake, and he knows that he needs to throw his rocks to the north...

Homework Statement A 2-kg particle is acted upon by a force given by F = -100x, where F is in Newtons, while being influenced by a constant nonconservative force of 50 N. The object is released from rest at x = 5.0 m. Estimate how far the particles moves before it comes to a stop. Homework...

Homework Statement A ballista is essentially a very large bow and arrow, except that it fires 3-m long, 2-kg arrows. The arrows are propelled by the stretched bowstring and bow, which behave as if they are two nonlinear springs that each behave according to the equation F = -kx^1.5, where...

A free body diagram is a good start. However, I believe this problem is solvable without all those equations--think about it for a moment. When is the tension force the smallest and the toaster still moving? Consider what happens when the tension force is at an angle of 90 degrees to the...

Because it is time the Bible's God be defeated, just like Zeus and Ra and a bunch of other gods and goddesses before them. Why does typing in all caps mean anger?

I'm think it is until the normal force is zero. Since after the bead is launched into the air, the only force acting on it would be the force of gravity.

Homework Statement A guitar string that is 85cm long is plucked. The fundamental frequency of the string is 350Hz. The string's tension is then increased and its wave speed is 1000m/s The string is vibrating at its fundamental frequency and a closed tube is next to it. A loud sound is produced...

I'm quite sure #10 is wrong; it's moving at constant velocity, so that means it's in equilibrium.

In preparing for a test I came across this problem: A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.2 and the push imparts an initial speed of 3.0m/s? Here's what I've come up with so far: Fapplied -...

Heh, thanks for the help anyways. :)

I tried this question multiple times, but now I've become stuck. A person shoots a gun straight up into the air on New Year's Eve. The velocity at which the bullet leaves is 3.00 x 10^2 m/s. What is the maximum altitude of the bullet? Here's what I've tried: I attempted to apply the...