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anonymous
 4 years ago
Can someone please help me out with this problem:
An object is thrown vertically upward and has a speed of 24m/s when it reaches two thirds of its maximum height above the launch point. Determine its maximum height.
Please show me how to do this. Thanks in advance.
anonymous
 4 years ago
Can someone please help me out with this problem: An object is thrown vertically upward and has a speed of 24m/s when it reaches two thirds of its maximum height above the launch point. Determine its maximum height. Please show me how to do this. Thanks in advance.

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TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.3the velocity at the top is 0 we can use that to set up a kinematic equation for the last third of the motion upwards\[v_f^2=v_i^2+2ad\]acceleration is g (down) the initial velocity is given, the final velocity is 0, and the height it moves is onethird the total height h/3\[0=v_i^2\frac23gh\]solve for h

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0hey eash more help me in my question

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0Thanks for your help. What happened to the 2, that would be in front of the g?

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.3it's still there, but I put it over the three we get from h/3

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0ok, what happened to the 2 in 2/3 go?

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.3dw:1328243865207:dwwe are just considering the last third of its flight over the distance h/3 after that if we find h we know the total height

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0okay that helped a lot.

TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.3\[v_f^2=v_i^2+2ad\]\[d=\frac h3\]\[a=g\]\[v_f=0\]so we get\[0=v_i^22g\cdot\frac h3=v_i^2\frac23gh\]
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