Wednesday
April 16, 2014

Homework Help: Physics

Posted by Sara on Sunday, August 26, 2012 at 5:58pm.

A helicopter is traveling with a velocity of 12 m/s directly upward. Directly below the helicopter is a very large and very soft pillow. As it turns out, this is a good thing, because the helicopter is lifting a large man. When the man is 20 m above the pillow, he lets go of the rope.
a. What is the speed of the man just before he lands on the pillow?
b. How long is he in the air after he lets go?
c. What is the greatest height reached by the man above the ground? (HINT: this should be greater than 20 m. Why?)
d. What is the distance between the helicopter and the man three seconds after he lets go of the rope?

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