Step 1:

David drop a ball from a bridge at an intial height of

Let denotes the number of meters above the ground the ball is after seconds,

Where is moment david drops the ball.

Here,

Substitute in the .

(a)

At to find the heigth of the ball.

The height of the ball to the nearest tenth of a meter at is .

(b)

Find at .

The ball is released after , it hit the ground.

Solution:

(a) At the height of the ball to the nearest tenth of a meter is .

(b) After the ball hit the ground.