rail is 60cm, and lenth of rail is 1.2m. if a 50kg skater approaches the ramp at 5m/s, how fast…

rail is 60cm, and lenth of rail is 1.2m. if a 50kg skater approaches the ramp at 5m/s, how fast will she be going at the end of the slide? the coefficent of the skate bored is 0.3m