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cheerspens

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## Homework Statement

The ball is moving at 2.0m/s just 40cm before it hits the table edge. If the ball has a mass of 51.3 grams and experiences a 0.23 N frictional force between it and the table, how fast will it be moving when it reaches the table's edge?

The table is 0.92m tall. How long will it take the ball to hit the ground?

## Homework Equations

X=X

_{o}+V

_{o}t+(0.5)at

^{2}

Y=Y

_{o}+V

_{oy}t+(0.5)at

^{2}

X=X

_{o}+V

_{ox}t

F

_{NET}=ma

F

_{g}=mg

Quadratic Formula

## The Attempt at a Solution

I used F

_{NET}=ma to solve for the acceleration and got -4.48m/s

^{2}. Then I used X=X

_{o}+V

_{o}t+(0.5)at

^{2}and the quadratic formula to solve for t and got 0.3 sec. I then plugged this into V=V

_{o}+at to get a velocity of 0.656m/s. Is this correct?

For the second question: I have that it will take 0.09 sec for the ball to hit the ground and it will land 0.1719 meters away from the table.

Does this seem correct?

Thanks in advance for any help.

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