i think a ballpark increase in throwing distance will be

brief workings :

acceleration across a small circle for a short period can be considered constant ( it likely isn't, but then you need calculus ), so from newton

v^2 = u^2 + 2as

u = 0

s = v^2/2a

s = circle diameter, v = speed of thrower moving across circle ( which we assume is directly related to release speed )

this boils down for a bigger circle to

v1/v2 = ( s1/s2 )^1/2

someone please check the circle sizes, but if it's 5' & you increase it to 6',

for a 19m SP'er -> 19 * ( 6/5 )^1/2 =

for a 21m SP'er -> 21 * ( 6/5 )^1/2 =

so we are getting on for 2m increase

for DT'er

for a 65m DT'er -> 65 * ( 6/5 )^1/2 =

for a 70m DT'er -> 70 * ( 6/5 )^1/2 =

so something like 6m increase

NB these increases will only hold for small increase in circle size - if your getting on to double it, it certainly won't hold

**~ (s1/s2)^1/2**brief workings :

acceleration across a small circle for a short period can be considered constant ( it likely isn't, but then you need calculus ), so from newton

v^2 = u^2 + 2as

u = 0

s = v^2/2a

s = circle diameter, v = speed of thrower moving across circle ( which we assume is directly related to release speed )

this boils down for a bigger circle to

v1/v2 = ( s1/s2 )^1/2

someone please check the circle sizes, but if it's 5' & you increase it to 6',

for a 19m SP'er -> 19 * ( 6/5 )^1/2 =

**20.8m**for a 21m SP'er -> 21 * ( 6/5 )^1/2 =

**23m**so we are getting on for 2m increase

for DT'er

for a 65m DT'er -> 65 * ( 6/5 )^1/2 =

**71.2m**for a 70m DT'er -> 70 * ( 6/5 )^1/2 =

**76.7m**so something like 6m increase

NB these increases will only hold for small increase in circle size - if your getting on to double it, it certainly won't hold

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