If a baseball player hits a baseball from 4 feet off the ground with an initial velocity of 64 feet per second, how long will it take the baseball to hit the ground? Use the equation h = -16t2 + 64t + 4.

Question

anonymous · Answer

using the quadratic formula

anonymous · Answer

Well there is no acceleration in the x direction. 

So factor the expression. 

	1,t2 = [\frac{ - 64 \pm \sqrt{64^{2}-(4)(-16)(4)}}{ 2(-16) }\]

anonymous · Answer

1.-2+or-sqrt17over2
2.2+or-2sqrt17allover2
3.2+or-4sqrt17
4.16+or-sqrt17allover2

anonymous · Answer

those are the answers which one do u think is right