Janet jumps off a high diving platform with
a horizontal velocity of 2.22 m/s and lands in
the water 1.5 s later.
The acceleration of gravity is 9.8 m/s2 .
a) How high is the platform?
Answer in units of m.
Her horizontal velocity does not affect the time it takes to fall.
Solve
H = (g/2) t^2
t is the time it takes to fall and you know what g is.
H is the answer
To find the height of the platform, we can use the kinematic equation:
h = (1/2) * g * t^2
where:
h is the height of the platform
g is the acceleration due to gravity (9.8 m/s^2)
t is the time of flight (1.5 s)
Plugging in the values, we have:
h = (1/2) * (9.8 m/s^2) * (1.5 s)^2
Solving this equation will give us the height of the platform.