# Ball Launched from a Horizontal Cliff#

A small ball is launched from a horizontal cliff with initial speed 2.97 $$m/s$$. The side of the cliff is sloped. The ball makes contact with the cliff side after falling a vertical distance of 68.8 cm.

## Part 1#

How long was the ball in the air before hitting the side of the cliff?

Please enter in a numeric value in $$s$$.

## Part 2#

What is the value of the angle $$\theta$$ shown in the figure?

Please enter in a numeric value in rad.

## Part 3#

What is the velocity of the ball just before hitting the side of the cliff? Give your final answer in terms of the $$x$$- and $$y$$-components of the velocity and the unit vectors $$\hat{\imath}$$ and $$\hat{\jmath}$$.

Please enter the coefficient of $$\hat{\imath}$$ (in $$m/s$$).

Please enter in a numeric value in $$m/s$$.

## Part 4#

What is the velocity of the ball just before hitting the side of the cliff? Give your final answer in terms of the $$x$$- and $$y$$-components of the velocity and the unit vectors $$\hat{\imath}$$ and $$\hat{\jmath}$$.

Please enter the coefficient of $$\hat{\jmath}$$ (in $$m/s$$).

Please enter in a numeric value in $$m/s$$.