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A ball with mass 015kg is thrown upward with initial velocity 20m/s from the roof of a building 30m high. There is air resistance of magnitude v^2/1325 directed opposite to the velocity , where the velocity is measured in m/s.

a. Find the max height above the ground that the ball reaches.

b. Find the time that the ball hits the ground.

I am unsure how to set this one up.


migration rejected from Feb 6 '14 at 14:00

This question came from our site for people studying math at any level and professionals in related fields. Votes, comments, and answers are locked due to the question being closed here, but it may be eligible for editing and reopening on the site where it originated.

closed as off-topic by Brandon Enright, John Rennie, centralcharge, Emilio Pisanty, Kyle Kanos Feb 6 '14 at 14:00

This question appears to be off-topic. The users who voted to close gave this specific reason:

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A ball with a 15-kg ass? – 6005 Feb 6 '14 at 3:43
fixed it; i meant mass – user104922 Feb 6 '14 at 3:46
This might be interesting if you are looking for an analytical solution. – fibonatic Feb 6 '14 at 8:32