final KE=Intial KE+initial PE
1/2 m v^2= 1/2 m 16^2 + mg 8.6
solve for v
alculate the final speed of a 1500 kg roller coaster if it has an initial speed of 16 m/s but reduces its elevation by 8.6 m by coasting down a frictionless incline.
3 answers
what mass do i use?
doesn matter, it divides out. If you want, use 1500kg