Recent content by scratchfish

Work = force * distance right? force unit:lb distance unit :ft

Homework Statement http://s2.webstarts.com/exploring-my-thought/index.html Find the kinetic energy of the system of bodies B1, B2 and B3 at an instant when the speed of B1 is 5ft/sec (the image is linked above) radius of B2 = 2ft mass of B1 = 32.2lb mass of B2 = 32.2lb mass of B3 = 96.6lb...

Thanks Telsa! that's just it! Why couldn't I think of that lol lol! exactly you are right.!

uhm.., but how do you assume that it's exactly half? any work? I mean how did you solve 1/2Iw^2?? How did you find w? where did this derive from? By the way, this is dyanamics problem, which you take after physics2 and statics,,,, It can't be that simple.

cylinder is full the mass of it is unknown. This seems to require more math than normal intro physics would require, where it briefly touches on the rotational motion

Homework Statement Upon application of the 10-N force F to the cord in Figure P5.3, the cylinder begins to roll to the right. After C has moved 5 m, how much work has been done by F? do not have picture so let me decribe the picture: 1) cylinder with radius .5m is on the ground 2) the cord...