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omar1

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Ok, I'm having some difficulty with a problem. It just doesn't add up.

Consider a 2.4kg ball and a 12.4kg ball in free fall. A) Find the Force that is acting on each ball. B) Find the acceleration of each ball, given Earth's gravity of 9.80 m/s/s.

[tex]\omega = mg[/tex]

[tex]F=ma => a=\frac{F}{m}[/tex]

Forumla:

F

F

[tex]\frac{23.52N}{2.4kg}= 9.80\frac{m}{s^2}[/tex]

[tex]\frac{121.52N}{12.4kg}= 9.80\frac{m}{s^2}[/tex]

I've solved the Force, part A, but the acceleration, part B, is making me crazier. I come out with g (9.8m/s2), this can't be correct!? So I think I must be missing a Kinematics formula, but I have neither velocity or time to work with.

The ball has a weight, so the acceleration of both balls must be faster than gravity? Correct?

Any help in the right direction would be appreciated. Thanks!

1. Homework Statement1. Homework Statement

Consider a 2.4kg ball and a 12.4kg ball in free fall. A) Find the Force that is acting on each ball. B) Find the acceleration of each ball, given Earth's gravity of 9.80 m/s/s.

## Homework Equations

[tex]\omega = mg[/tex]

[tex]F=ma => a=\frac{F}{m}[/tex]

## The Attempt at a Solution

Forumla:

F

_{1}=23.52**N**F

_{2}=121.52**N**[tex]\frac{23.52N}{2.4kg}= 9.80\frac{m}{s^2}[/tex]

[tex]\frac{121.52N}{12.4kg}= 9.80\frac{m}{s^2}[/tex]

I've solved the Force, part A, but the acceleration, part B, is making me crazier. I come out with g (9.8m/s2), this can't be correct!? So I think I must be missing a Kinematics formula, but I have neither velocity or time to work with.

The ball has a weight, so the acceleration of both balls must be faster than gravity? Correct?

Any help in the right direction would be appreciated. Thanks!

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