Physics
posted by Mart
A physics student kicked a soccer ball toward an aprtment building 40.8 meters from her. The velocity of the ball was 40 m/s^2 @30 degrees. At what approximate height did the ball hit the building?

Damon
initial vertical velocity = Vi=40 sin 30 = 20 m/s (not m/s^2)
constant horizontal velocity = 40 cos 30
How long to get there?
40.8 m/(40 cos 30) = 1.18 seconds
so now the vertical problem, how high after 1.18 s
h = Vi t  (1/2) g t^2
h = 20(1.18) 4.9(1.18)^2
all yours :)
Respond to this Question
Similar Questions

physics please help
A soccer ball is kicked from the top of a 256 foot building with an initial velocity of 6 ft/s. How far from the base of the building will the ball land? 
Physics/ Precalculus
If a ball is thrown upward from a building 30 m tall and the ball has a vertical velocity of 25 m/s, then its approximate height above the ground t seconds later is given by h(t) = 30 + 25t  5t^2 a. After how many seconds does the … 
Physics
A football is kicked from the ground at 27 m/s at an angle of 42 degrees above the horizontal (ground). No one gets in the way until after it hits the ground. Use the value g=9.8 m/s^2. Assuming that the ground is level and that there … 
Physics
A football is kicked from the ground at 27 m/s at an angle of 42 degrees above the horizontal (ground). No one gets in the way until after it hits the ground. Use the value g=9.8 m/s^2. Assuming that the ground is level and that there … 
physics, please help me, this question is hard
John Stands at the edge of a flat roof of a three story building and throws a 180g ball straight up into the air that reaches a height of 3.0 meters above the roof. ( building is 14 meters high) A. What is the initial speed of the … 
Physics
A soccer ball kicked on a level field has an initial vertical velocity component of 15 meters per second. Assuming the ball lands at the same height from which it was kicked, what is the total time the ball is in the air? 
Physics urgent pls!
A ball is tossed from an upperstorey window of a building.The ball is given an initial velocity of 8 m/s at an angle of 20 degrees below the horizontal.it strikes the ground 3s later .(a) How far horizontally from the base of the … 
Physics
You are walking around your neighborhood and you see a child on top of a roof of a building kick a soccer ball. The soccer ball is kicked at 41° from the edge of the building with an initial velocity of 21 m/s and lands 59 meters … 
Physics
A soccer ball is kicked with a velocity of 12m/s, HORIZONTALLY off a building which is 8.5m high. What is the velocity of the ball after 1.25s? 
ap physics
a ball 1 is thrown horizontally from the top of a building that is 50 meters tall. if another ball 2 is dropped at the same time as the first is released, which ball will hit the ground first?