Posted by **Vico** on Monday, September 21, 2009 at 11:15am.

From the window of a building, a ball is tossed from a height y0 above the ground with an initial velocity of 8.00 m/s and angle of 20.0 degrees below the horizontal. It strikes the ground 3.00 s later. (a) If the base of the building is taken to be the origin of the coordinates, with upward the positive y-direction, what are the initial coordinates of the ball? (b) With the positive x-direction chosen to be out the window, find the x- and y-components of the initial velocity. (c) Find the equations for the x- and y-components of the position as functions of time. (d) How far horizontally from the base of the building does the ball strike the ground? (e) Find the height from which the ball was thrown. (f) How long does it take the ball to reach a point 10.0 m below the level of launching?

- Physics -
**drwls**, Monday, September 21, 2009 at 12:04pm
They practically tell you how to do this problem by the order in which they ask the questions. First write down the starting conditions, then write down the equations of motion, and then solve them.

a) x = 0; y = y0

b) Vxo = 8.00 cos 20; Vyo = 8.00 sin 20

c) x = Vxo*t; y = y0 + Vyo*t - (g/2)t^2,

where g = 9.8 m/s^2

d) Vxo* 3.00 s

e) Solve the equation y = 0. Use the equation in part (c)

It will tell you what y0 is.

f) Solve the equation y = 10.0

## Answer this Question

## Related Questions

- Physics - From the window of a building, a ball is tossed from a height y0 above...
- Physics urgent pls! - A ball is tossed from an upper-storey window of a building...
- Physics - From the window of a building, a ball is tossed from a height y 0 ...
- Physics - From the window of a building, a ball is tossed from a height y0 above...
- physics - A)A ball is tossed from an upper-story window of a building. The ball ...
- Physics - A ball is tossed from an upper-story window of a building. The ball ...
- physic - Hi! Question:A ball is tossed from an upper-story window of a building....
- Physics - a ball is tossed from an upper story window of a building given an ...
- Physics - A ball is tossed from an upper-story window of a building. The ball is...
- Physics - From the window of a building, a ball is tossed from a height y0 above...

More Related Questions