Answer:
Explanation:
time needed to travel horizontally 4.9 m
t = d/v = 4.9/4.7cos14 = 1.0744 s
vertical position at that time if the lower roof height is the origin
h = h₀ + v₀t + ½at²
h = 1.8 + (4.7sin14)1.0744 + ½(-9.81)1.0744²
h = -2.64 m
so he is lower than the edge of the roof by a substantial distance when he collides with the wall below it.
