Hello, unifieda!

This is a strange one . . . an "eyeball" problem

Just *look* at it . . .nothing fancy is needed!

We are given three functions: .

I would *guess* the following:

is the east-west location of the stone.

. . It is moving east at 10 m/sec. **

is the north-south location of the stone.

. . It is moving south at 5 m/sec. **

is the height of the stone above the ground.

At

The stone began at 6.4 m above the ground.

. . Therefore, the height of the building is 6.4 meters.

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

**

The stone is thrown horizontally from the building.

Looking down, the scene looks like this: Code:

10t
A * - - - - - *
* θ |
* | 5t
* |
* B

The stone is thrown from in the direction of

Its speed is: . m/sec.

Its direction is: . south of east.

So, you see, the initial velocity was not zero.