Joe stands on a bridge kicking stones into the water below. If he kicks a stone with a horizontal velocity of 3.10 m/s, and it lands in the water a horizontal distance of 6.60 m from where Joe is standing, what is the height of the bridge? Enter m as unit. Draw the problem.

Answer 1

Dx = Xo*t = 6.6 m.
3.1t = 6.6,
t = Tf = 2.13 s. = Fall time = Time in flight.

h = Vo*t + 0.5g*t^2,
h = 0 + 4.9(2.13)^2 = 22.2 m.