Posted by **deb** on Saturday, September 28, 2013 at 1:54am.

major leaguer hits a baseball so that it leaves the bat at a speed of 29.0m/s and the angles of 36.9 above horizontal ignore resistance what two time is the baseball at a height of 10.0m above the point at which it left the bat?

*what two times is the baseball at a height of 10.0m above the point at which it left the bat?

Calculate the horizontal component of the baseballs velocity at each of the two times you found in part a.

calculate the vertical component of the baseball's velocity at each of the two times you found in part (a)?

What are the magnitude of the baseball's velocity when it returns t the level at which it left the bat?

Thanks for any help, when I calculate everything I'm missing a step and the answer is wrong.

- physics -
**Henry**, Sunday, September 29, 2013 at 10:07pm
Vo = 29m/s[36.9o]

Xo = 29*cos36.9 = 23.2 m/s.

Yo = 29*sin36.9 = 17.4 m/s.

a. h = Yo*t + 0.5g*t^2 = 10 m

17.4*t - 4.9t^2 = 10

-4.9t^2 + 17.4t - 10 = 0. Use Quad. Formula.

t = 0.72, and 2.83 s.

b. X = Xo = 23.2 m/s. = Hor. component

of velocity , and does not change.

c. Y = Yo + g*t = 17.4 - 9.8*0.72 = 10.34 m/s.

Y = 17.4 - 9.8*2.83 = -10.34 m/s.

d. V = Vo = 29 m/s.

## Answer this Question

## Related Questions

- physics - A major leaguer hits a baseball so that it leaves the bat at a speed ...
- Physics - A major leaguer hits a baseball so that it leaves the bat at a speed ...
- physics - A major leaguer hits a baseball so that it leaves the bat at a speed ...
- Physics - A major leaguer hits a baseball so that it leaves the bat at a speed ...
- Physics - The velocity of the baseball as it leaves the bat is 38.2 m/s. ...
- physics - A batted baseball leaves the bat at an angle of 33.0∘ above the ...
- physics - A batted baseball leaves the bat at an angle of 26.0^\circ above the ...
- physics - A 0.01-kg baseball traveling in a horizontal direction with a speed of...
- physics - A batted baseball leaves the bat at an angle of 35.0 degrees above the...
- Physics - A pitcher throws a 0.192-kg baseball, and it approaches the bat at a ...