A roller coaster cart of masSS m 271 kg starts stationary at point A, where hi 38.5m and a while later is at B, where 11.5 m. The acceleration of gravity is 9.8 m/s? B. h2 What is the potential energy of the cart relative to the ground at A? Answer in units of J. Answer in units of J part 2 of 2 What is the speed of the cart at B, ignoring the effect of friction? Answer in units of m/s.

A roller coaster cart of masSS m 271 kg starts stationary at point A, where hi 38.5m and a while later is at B, where 11.5 m. The acceleration of gravity is 9.8 m/s? B. h2 What is the potential energy of the cart relative to the ground at A? Answer in units of J. Answer in units of J part 2 of 2 What is the speed of the cart at B, ignoring the effect of friction? Answer in units of m/s.