I have a few and some Adio's Path, my Adio's Flick my skateboard is easier than my way, I think, I wonder what it's shoes that are better than Flick's Adio skateboarding?

Jim rides his skateboard down a ramp that takes the form of quarter-circle with a radius of 6 50 m. At the bottom of the ramp, move, Jim 5 64 m / s. Jim and his skateboard has a mass of 75 0 kg. How much work is done frictionless skateboard going down a ramp?

Jim rides his skateboard down a ramp that takes the form of quarter-circle with a radius of 6 50 m. At the bottom of the ramp, move, Jim 5 64 m / s. Jim and his skateboard has a mass of 75 0 kg. How much work is done frictionless skateboard going down a ramp? (Joule)