Two cylinders of identical mass but with different radii roll down a ramp. in your initial post to the discussion, respond to the following: which cylinder gets to the bottom first? which cylinder has more total kinetic energy? why? now, using the concept of moment of inertia, explain why two objects rolling down an incline (even if they have identical masses) roll at different speeds. finally, be sure to respond to at least two of your peers’ posts.

The great sandini is a 60.0-kg circus performer who is shot from a cannon (actually a spring gun). you don’t find many men of his caliber, so you him design a new gun. this new gun has a very large spring with a very small mass and a force constant of 1100 n/m that he will compress with a force of 4400 n. the inside of the gun barrel is coated with teflon, so the average friction force will be only 40.0 n during the 4.00 m he moves in the barrel. at what speed will he emerge from the end of the barrel, 2.50 m above his initial rest position?