Recent content by leisiminger

An athlete at the gym holds a 4.0 steel ball in his hand. His arm is 70 long and has a mass of 4.0 What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? What is the magnitude of the torque about his shoulder if he holds...

i figure for the bottom its N= mg +mv^2 ------------- r and the top would be N= mg - mv^2 ---------------- r

A 40kg child takes a ride on a Ferris Wheel that rotates 4 times each minute and has a radius of 9m. I firgured that angular velocity is .419 rads/sec I figured that tangential velocity is 3.77m/sec I figured that centripetal acceleration is 1.58m/sec^2 Questions a)What force in N does...

A synchronous satellite is put in a circular orbit around Jupiter. Jupiter rotates once every 9.84 hours. Determine the radius of the satellites orbit from the center of Jupiter if the mass of Jupiter is given to be 1.9 x 10^27 kg. I don't even know how to start this, I've looked up the...

ok, i have an idea. would i use a = m1g -m2gsin theta ------------------- m1 + m2

Objects of Masss m1= 4kg and m2 = 9kg are connected by a light string that passes over a frictionless pulley. Object m1 = is held at rest on the floor, and m2 rests on a fixed incline of 40 degrees. The objects are released from rest, and m2 slides 1 meter down the <b>rough</b> incline in 4...

we use a,v,x,and t. i assume your mean x for change in distance? if so, its 1m

any more help, just a clue?

i don't understand, the acceleration of one block should be the acceleration of the other block right? The velocity of an object under constant acceleration will increase linearly and is: vf = v0 + a t

hi, Thanks! https://www.physicsforums.com/attachment.php?attachmentid=2614&d=1109446369 is a good picture of the problem, except that m1 starts on the floor at rest. well, to be honest, i thought about just analyzing one block, since accleration will be the same on both blocks, using a...

Homework Statement [/b] Objects of Masss m1= 4kg and m2 = 9kg are connected by a light string that passes over a frictionless pulley. Object m1 = is held at rest on the floor, and m2 rests on a fixed incline of 40 degrees. The objects are released from rest, and m2 slides 1 meter down the...