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Homework Statement
2. An Olympic diver steps off of a 10. m high diving board, plunges into the water and comes to rest beneath the surface of the water 1.7 s after entering it. a) Determine the velocity at which the diver hits the water. b) Determine the average acceleration of the diver in the water.
Homework Equations
i gotta determine the final velocity at which the swimmer reaches the water that in turn will be the initial velocity at which the swimmer enters the water.
equations are attached
The Attempt at a Solution
Falling
vi = 0 m/s
vf =
a = 9.8 m/s^{2}
t =
s = 10m
In water
Vi =
Vf = 0 m/s
a =
t = 1.7 s
s =
Homework Statement
A baseball is observed to drop downwards past a 3.0 ft long open window in 0.20 s. a) Find its velocity at the top of the window. b) Find its velocity at the bottom of the window. c) Find how high above the top of the window the object was dropped.
Homework Equations
equations attached
The Attempt at a Solution
3ft x .3048 = .9144m
From Drop
vi = 0m/s
vf =
a = 9.8m/s^{2}
t =
s =
Top of Window
vi =
vf =
a = 9.8m/s^{2}
t = .2s
s = .9144m
i was able to finish all 7 other problems on the page but these 2. What am i overlooking?
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