# Physics

posted by .

"You throw a rock at 25m/s at an angle of 25.8511 degrees hitting a target 50m away on the ground in 2.22s." (this is on a flat surface)
Vi=25m/s
Theta=25.8511 degrees
x=50m
t=2.22s
and of course g=9.81m/(s^2)

"How high does the rock fly in the air?"

I know this problem should be a simple plug and solve but my answer does not match the one in the back of my book which is 6.05m. Test coming up and I want to know how to reach that answer or if the book is wrong, what the right answer is.

Please show steps and what equation to use.

• Physics -

25sin25.8511 = 10.90
t=2.22 is the total time
2.22/2= 1.11 is half the time
h=vit . 1/2 at^2
h=(10.9*1.11) -1/2*9.8*(1.11^2)
h=6.06

## Similar Questions

1. ### Physics

"You throw a rock at 25m/s at an angle of 25.8511 degrees hitting a target 50m away on the ground in 2.22s." (this is on a flat surface) Vi=25m/s Theta=25.8511 degrees x=50m t=2.22s and of course g=9.81m/(s^2) "How high does the rock …
2. ### physics

a golf ball is hit off a tee witha speed of 50m/s at an angle of 37 degrees above the horizontal. At what two values of x (horizontal distance from the tee) will the ball be 25m above the ground?
3. ### physics

a golf ball is hit off a tee witha speed of 50m/s at an angle of 37 degrees above the horizontal. At what two values of x (horizontal distance from the tee) will the ball be 25m above the ground?
4. ### Physics

An isolated segment of wire of length L=4.50 m carries a current of magnitude i=35.0 A at an angle theta=50.3 degrees with respect to a constant magnetic field with magnitude B= 6.70E-2 T. What is the magnitude of the magnetic force …
5. ### AP Chemistry

Calculate the pH of each of the following buffered solutions: a. 0.10M C2H5NH2/0.25M C2H5NH3Cl b. 0.25M C2H5NH2/0.50M C2H5NH3Cl c. 0.50M C2H5NH2/0.50M C2H5NH3Cl
6. ### physics

an object is shot from the ground at an angle of 35 degrees with a speed of 50m/s. what are the x and y components of its velocity initially at the top of its path and just before it hits the ground?
7. ### physics

an object is shot from the ground at an angle of 35 degrees with a speed of 50m/s. what are the x and y components of its velocity initially at the top of its path and just before it hits the ground?
8. ### Chemistry

Which of the following electron configurations belongs to an atom that is most likely to be involved in a covalent bond?
9. ### Physics

VERY URGENT- A kicked ball takes off at 25m/s at an angle with the ground. If the goal is 50m away and the horizontal bar is 3.44m above the ground, what must be the elevation angle for the kicker to score a goal?
10. ### Physics

NEED HELP On a flat battle ground, a catapult is used to launch a rock with a velocity of 25m/s at angle 30 degrees above the horizontal.?

More Similar Questions