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Use the rationalized expression from the previous question to calculate the time in seconds that a cliff diver is in free fall.

Assume the acceleration due to gravity, a, is -9.81 m/s and the dive distance, d, is -35 m. The negative numbers indicate the direction is downward. Round the answer to two decimal places.

 Apr 21, 2021
 #1
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omgosh, I was just working on these problems on khan academy. 

x = v_0*t + 1/2*a*t^2

 

What do we know:

x = -35

v_0 = 0

a = -9.81

t = what we're looking for. 

 

Can you take it from here?

 

=^._.^=

 Apr 21, 2021

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