Bailey D.

asked • 12/14/16

Need help with this related rate problem

Laura is hitting a golf ball at the driving range. Suppose that the altitude of the ball is given in feet by the equation y = 200t − 40t 2, where t is the time in seconds after she hits the ball. Suppose also that the horizontal velocity of the ball is constant and equal to 80 feet per second. At what rate is the angle of elevation of the ball changing 2 seconds after Laura hits the ball?

1 Expert Answer


Kenneth S.

Commendable generous level of effort, Eric, not only for the Calculus, but for all the typing.


Eric C.

Thanks Kenneth! I just hope it wasn't wrong! This is one of the few answers I'm mildly unsure of. You have any idea?


Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.


Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.