Sunday

March 29, 2015

March 29, 2015

Posted by **Coach** on Tuesday, May 8, 2012 at 5:41am.

Use the quadratic equation to determine how many seconds goes by before the ball hits the ground?

- math HELP -
**Bosnian**, Tuesday, May 8, 2012 at 6:25amWhen the ball hits the ground height be zero.

25 t - 16 t ^ 2 = 0

t ( 25 - 16 t ) = 0

This equation will be zero when t = 0

OR

25 - 16 t = 0

25 - 16 t = 0 Add 16 to both sides

25 - 16 t + 16 t = 0 + 16 t

25 = 16 t Divide both sides by 16

25 / 16 = t

t = 25 / 16

When t = 0 ball does not fly.

So solution are :

t = 25 / 16 seconds

**Answer this Question**

**Related Questions**

algebra - When a ball is thrown in the air, the height h of a ball in feet t ...

algebra - When a ball is thrown in the air, the height h of a ball in feet t ...

Algebra - A ball is thrown into the air. The height in feet of the ball can be ...

math - a ball is thrown into the air at a speed of 96 feet/sec. The equation ...

math - A ball is thrown into the air with an upward velocity of 20 ft/s. Its ...

college - A blue ball is thrown upward with an initial speed of 19.8 m/s, from ...

Algebra - A ball is thrown into the air. The height h, in feet, of the ball can ...

maath HELPPPP - a ball is thrown into the air at a speed of 96 feet/sec. The ...

algebra - A ball is thrown into the air with an upward velocity of 28 ft/s. Its ...

Physics - A red ball is thrown down with an initial speed of 1.3 m/s from a ...