|March 5th, 2017, 09:55 PM||#1|
Joined: Jan 2017
Algebra Velocity Problem
An object is thrown from an initial height of 0 feet with an initial velocity of 160 feet per second. Solve for when it will return to the ground. Show your work and explain the steps you used to solve.
|March 5th, 2017, 09:59 PM||#2|
Joined: Sep 2015
Since its starting and ending altitudes are the same, 0 feet, the time it returns to the ground is twice that of when it reaches the top of its trajectory.
At the top of its trajectory, its vertical speed is 0 ft/s.
That should get you started.
Last edited by skipjack; March 7th, 2017 at 01:13 PM.
|March 7th, 2017, 11:08 AM||#3|
Joined: Jan 2015
In this problem v0= 160 and s0= 0 while a is the downward acceleration is 32 feet per second per second. S+ o it will return to the ground when (-32/2)t^2+ 160t= 0. That equation should be easy to solve. It has two solutions but it should be clear which is the one you want!
|algebra, problem, velocity|
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