Recent content by Scott_j

L = mvr m is the mass of the object, v is the magnitude of its velocity, and r is the separation between the objects.

yea L=Iw gpe=ke. . .

KE=1/2Iw^2... Please forgive me if I'm not getting it, it's nearly 5 am and I haven't gotten any sleep

F=ma Torque=I*angularacceleration

I worked backwards, so that I calculated angular velocity from 10 m/s. w(initial)=0.63 rev/s = 2pi(0.63)rad/s = 4 rad/s v=r*w=2.5(4)=10m/s

Oh yes thanks for pointing out the errors, for a) i mistakenly thought that 0-4 was 1-4 for some reason.

Im basing letter a on that gandalf is rotating 0.63 rev/sec, multiplied by 2pi to get 4rad/sec.

1. Saruman’s plan to get the one ring involves disposing of the ring-bearer. To protect Frodo, Gandalf fights Saruman. In the following battle, Saruman tosses Gandalf 20 feet across the room at a speed of 10 m/s. Before he falls out of the 138 meter tall tower, Gandalf plants his staff into the...

I rewrote the question, ill write it in a second, thanks for responding though. . . Its 4 am right now and the thing's due in couple hours.

Forgot to add in this part: Saruman is constantly applying a force to gandalf's feet to make him rotate continously, so when the block hits him, some of the kinetic energy of the book is shared with rotational energy of gandalf.

Homework Statement I made a physics problem for a project that we had to do, but I do not know where to start. Saruman’s plan to get the one ring involves disposing of the ring-bearer. To protect Frodo, Gandalf fights Saruman. In the following battle, Saruman pushes Gandalf 20 feet across the...