posted by Adam .
Janet jumps oﬀ a high diving platform with
a horizontal velocity of 2.23 m/s and lands in
the water 1.7 s later.
How high is the platform? The acceleration
of gravity is 9.8 m/s
Answer in units of m
h = 0.5g*t^2 = 4.9*1.7^2 = 14.2 m.