Does it matter how fast I throw the ball?
Yes, it does. The faster you throw the ball, the harder the ball will hit the pins. Knowing how much inertia you need to knock over the pins is good for most bowlers to find the proper ball weight for them. When finding out the inertia is the height at which you release the ball, the mass of the ball you are using, and the velocity of the ball. Please refer to the section on bowling ball stats under the heading finding the ball velocity.
The equation of Inertia is I=((-2gh/v2)-1)gm2. In this equation, I is inertia, g is gravity, v stands for the velocity of the ball, m is the mass of the ball you are using, and h is height from which the ball is thrown. For example we will find the Inertia of one of my average shots.
I=[{(-2(9.8)(.508)/(4.3052)}-1](9.8)(18.3)2 = -5045.122609161 m3/s2