Posted by rory on Thursday, February 28, 2008 at 9:03pm.
A 62.0 kg diver falls from rest into a swimming pool from a height of 3.50 m. It takes 1.92 s for the diver to stop after entering the water. Find the magnitude of the average force exerted on the diver during that time.

physics again...  DanH, Thursday, February 28, 2008 at 9:31pm
First, calculate the velocity when he hits the water using:
V(f)^2 = V(o)^2 + 2as
Then, calculate the deceleration as he goes through the water using:
V(f) = V(o) + at.
Then you can get the force once you know a with F = ma.

physics again...  rory, Thursday, February 28, 2008 at 9:37pm
they want us to use the height somehow.

physics again...  DanH, Thursday, February 28, 2008 at 9:38pm
yes, in my first equation, the "s" is distance, or in this case, height.

physics again...  rory, Thursday, February 28, 2008 at 9:45pm
yeah its still not working i did that i think it wants us to more of an kinetic energy or work method to solve for it.

physics again...  DanH, Thursday, February 28, 2008 at 9:49pm
OK, you can do it that way. First, he has potential energy = mgh. This gets converted into kinetic energy. The kinetic energy when he hits the water is (mv^2)/2, so you can calculate his velocity when he hits the water. Then calculate his deceleration, and the force.

physics again...  rory, Thursday, February 28, 2008 at 10:00pm
thanks!

physics again...  DanH, Thursday, February 28, 2008 at 10:02pm
you're welcome!
Answer This Question
Related Questions
 physics  A 62.0 kg diver falls from rest into a swimming pool from a height of ...
 physics  A 62.0 kg diver falls from rest into a swimming pool from a height of...
 Physics  A 86.0 kg diver falls from rest into a swimming pool from a height of ...
 Physics please help!!  A 86.0 kg diver falls from rest into a swimming pool ...
 physics energy and work  A 47.6kg diver steps off a 10.82 m high diving board...
 Physics  At the local swimming pool, the diving board is elevated h = 7.5 m ...
 Physics  A 45.0 kg diver steps off a 8.0 m high diving board and drops straight...
 physics  A 48.0 kg diver steps off a 10.0 m high diving board and drops ...
 physics  A diver jumps from a height of 24.0m into a swimming pool. What's her ...
 PHYSICS  A 58.3 kg diver steps o a diving board and drops straight down into ...
More Related Questions