win a ball from Bowling.com
Share to Facebook Share to Twitter Email This More...


?

BallReviews.com

Promote Your Page Too
?

Author Topic: lighter ball more ball speed?  (Read 365 times)

toomanytenpins

  • Hero Member
  • *****
  • Posts: 1452
lighter ball more ball speed?
« on: October 28, 2007, 08:38:11 AM »
i just got an old 14 ball to see if it is the ball weight or my technique that is causing my lack of ball speed. its the latter. !4 15 or 16 no faster than 12 mph on my regular release. I have a lousy release though and this is how i know.
    I throw the ball and it stops when it hits the lane .Instead of it rolling it stops and then rolls. I have notice that on occassion i do get a good roll on the ball and the speed comes up. And it comes up without more effort,foot or arm speed. I need to get out of pitching the ball and roll it a smooth release where the ball comes off the thumb and the fingers come thru the ball. Sounds so easy .Something else to work on ,wish me luck
--------------------
my style, the art of bowling without bowling

 

Hook

  • Full Member
  • ***
  • Posts: 200
Re: lighter ball more ball speed?
« Reply #1 on: October 28, 2007, 04:51:16 PM »
quote:
I throw the ball and it stops when it hits the lane .Instead of it rolling it stops and then rolls.


Now THIS I gotta see.

Sincerely,
Isaac Newton
--------------------

QUICK ENGLISH LESSON:
lose - the opposite of win
loose - the opposite of tight

difiCa

  • Newbie
  • *
  • Posts: 48
Re: lighter ball more ball speed?
« Reply #2 on: October 28, 2007, 05:10:52 PM »
Here's a lesson of basic physics:

If you force the ball to fall, your ball speed will increase if you use a lighter ball.

If you'd attach a bowling ball to a pendulum with a string (absolutely free, probably unachievable by humans), a heavier ball will generate more force, which means that the ball will go faster.

So, here's what you should use to generate maximum possible ball speed with commonly manufactured bowling balls:

Muscling: 6 lbs
Free swing: 16 lbs

(However i don't recommend using a 6 pound ball)

Dan Belcher

  • Hero Member
  • *****
  • Posts: 3954
Re: lighter ball more ball speed?
« Reply #3 on: October 29, 2007, 08:43:16 AM »
I recommend seeing a coach.  It sounds like your approach and release both need some work...

Ishmael

  • Hero Member
  • *****
  • Posts: 854
Re: lighter ball more ball speed?
« Reply #4 on: October 29, 2007, 09:02:18 AM »
quote:
If you'd attach a bowling ball to a pendulum with a string (absolutely free, probably unachievable by humans), a heavier ball will generate more force, which means that the ball will go faster.


You must have skipped physics class in high school.  Acceleration due to gravity is a constant regardless of the mass of the object.

shelley

  • Hero Member
  • *****
  • Posts: 9657
Re: lighter ball more ball speed?
« Reply #5 on: October 29, 2007, 09:27:28 AM »
Actually, g is not quite constant, but close enough.

You're right, varying the mass of the bob (ball) in the usual pendulum model won't affect the period or speed of it.  However, the normal pendulum model is not applicable in this situation.

What you're thinking of is the model where the ball is attached to a weightless string, the entire mass of the system is contained in the ball.  The period is related to sqrt(l/g), where l is the length of the pendulum arm.  Longer arms means more speed because the ball has more gravitational potential energy (it "falls" from a greater height).  The mass of the object is irrelevant.

However, my arms have mass, unlike the arm in the simple model.  The "length" of the pendulum is not simply my arm's length, it's the center of mass of the arm/ball system.  Probably going to be somewhere in my forearm.  A heavier ball will pull the center of mass towards the ball, a lighter ball will pull it towards the elbow.  Hence, with a heavier ball, the pendulum arm is actually longer.  Longer pendulum arm means that the actual end of my arm is moving faster.

But that ignores a lot of things.  For one, even the free-est of swings is not truly free.  We all put some muscle into the ball, and lighter weight balls are simply easier to muscle.  Second, it ignores the fact that foot speed affects ball speed.  You can't run up to the line as quickly with a heavier ball, your legs have to compensate for the ball's inertia as you swing it behind you.  A heavier ball has more inertia and to keep the ball moving with your body, you have to hold it tighter, lest the ball flies back into the pit.  That tighter grip means more muscling of the ball.  Third, that typical pendulum model is not a good approximation of your arm with a bowling ball stuck on the end that swings over a wide range of motion in which even the fulcrum is moving.

Bottom line is to throw what's comfortable.  You can't assume that a heavier or lighter ball will give you more speed, there are simply too many variables that are unique to your body that classical, simple physics doesn't take into account.  Your carry will be best when you are comfortable and are bowling with the optimum amount of effort.  There are tradeoffs all around: Does going up in weight make you more speed- or rev-dominant?  Does your speed change more than the revs you're getting?  In which way?  Can you swing the ball more and generate more angle because you're now rev-dominant?  Do you tend to drop the ball or have a weak release because it's too heavy?  Are you blowing past the breakpoint?

There is some handwaving, but in all physical endeavors, what works for one may not work for another, no matter what the over-simplified, not-actually-applicable, gedanken model says.  There are modeling errors that affect different people in different ways.

Plus, a heavier object does generate more force (F=ma), just not more speed.  

SH

Edited on 10/29/2007 9:33 AM

J_Mac

  • Hero Member
  • *****
  • Posts: 6747
Re: lighter ball more ball speed?
« Reply #6 on: October 29, 2007, 05:30:32 PM »
All things being equal, a lighter ball will not usually create more ball speed unless you make a change in your approach and armswing tempo.  Also, keep in mind that a lighter ball will lose momentum faster than a heavier one, therefore hooking earlier.

If anything you should get more revs with a lighter weight ball.

But what do I know?  I'm not a physics major...
--------------------
"A word to the wise ain't necessary -- it's the stupid ones that need the advice."  Bill Cosby
"Never argue with an idiot. They bring you down to their level and beat you with experience."