Posted by **Pat** on Wednesday, January 11, 2012 at 3:08am.

A ball is thrown horizontally from a platform so that the initial height of the ball is 6.0 m above the level ground below. The ball lands 24 m from its original horizontal location. Find how fast the ball was thrown.

Show work i just don't understand

- Physics -
**Henry**, Thursday, January 12, 2012 at 4:35pm
d = Vo*t + 0.5g*t^2 = 6 m.

0 + 4.9t^2 = 6,

t^2 = 1.22,

Tf = 1.11 s. = Fall time or time in flight.

Dx = Vo*Tf = 24 m,

Vo*1.11 = 24,

Vo = 21.7 m/s.

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