Recent content by PhysicStuden7

Homework Statement A person is swinging on a swing with a rope length of 8 feet. The person swings backwards at an angle of 30 degrees. The swing is elevated off the ground 2 feet, and the mass of the person is 100kg. If the person swings forward and jumps off, what distance will the...

I figured that was probably wrong, but I'm not really sure where to go from here. Can you point me in the right direction of where to begin? I understand that the work done by gravity is m*g*cos(theta), but I am confused on how to figure out the work done by friction. Any help would be...

So far this is my solution, and I have no idea if it is right. If anyone can help, please let me know. Wf=mgcos(45)d Wf=(0.085kg)(9.8m/s)(cos45)(0.3m) Wf=0.177 Work by gravity= change in PE Wg= mg[h1-h2] Wg= (0.085kg)(9.8m/s)(1m-0.53m] Wg=0.392 Wf/Wg= 0.177/0.392 = 0.452

Homework Statement A ball with mass, m is released from rest at a height, h1 and is allowed to roll down a ramp. After wrapping around a loop, it rolls up an incline of angle theta to height, h2, from which it launches. We measure the horizontal distance, d, it travels. To investigate the...