Question

An arrow is shot vertically upward from a platform 25ft high at a rate of 172⁢ft/sec. When will the arrow hit the ground?

Answer 1

Hello,


h= -16t^2+185t+10, h = 0 when it hits the ground
16t^2+185t+10 = 0
t = 11.6sec (to nearest tenth)


Hope this helps