Question

Ski jumper competing for an Olympic gold medal want to jump a horizontal distance of 135 m. The take off point of the ski jump is at a height of 25 m. With that horizontal speed Must he leave the jump?

Answer 1

to solve this question you need to find the time span of the ski jumper before he lands
thus
25 = 1/2*10*t^2
50/10 = t^2
t = 2.23 seconds
and the distance is given 135m
speed = distance/time
= 135/2.23
= 60.5 m/s