Please check my calculations

From: "Protoman" <Protoman2050@xxxxxxxxx>
Date: 12 Feb 2006 19:14:16 -0800

Could you check whether this projectile motion problem is correct,
using the equations:
f(x)=-16x^2+256x
f'(x)=-32x+256
F(x)=-16x^3/3+128x^2+c

Solving for the max altitude, the time, and the displacement, I got:

Time=8 sec.
Max Altitude: 1024ft.
Displacement: 7851.67ft to the left.

Could you check these; I'm homeschooled. Thanks!!!!

.

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Re: Please check my calculations
... Protoman wrote: ... Solving for the max altitude, the time, and the displacement, I got: ... Displacement: 7851.67ft to the left. ...
(sci.math)
Re: Please check my calculations
... Solving for the max altitude, the time, and the displacement, I got: ... Displacement: 7851.67ft to the left. ... with initial vertical velocity 256 ft/sec. ... Neglecting air resistance: ...
(sci.math)