A ball thrown straigh upward from the ground reaches a maximum height of 400ft. What was its initial velocity? Using the formulas:(adsbygoogle = window.adsbygoogle || []).push({});

V=at+Vo

X=1/2at^2+Vot+Xo

the distance travelled is 400ft, and the initial distance was 0. The force of gravity is -32ft/s/s. Also, the velocity of the ball at the top of the height is 0.

in the equation V=at+Vo, I don't know how to solve it with 2 variables (t and Vo)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Problems with Velocity and Acceleration

**Physics Forums | Science Articles, Homework Help, Discussion**