#13 in Playground balls
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Reddit mentions of Sportime Super-Safe Playground Ball, 8-1/2 Inches, Yellow - 009590
Sentiment score: 0
Reddit mentions: 1
We found 1 Reddit mentions of Sportime Super-Safe Playground Ball, 8-1/2 Inches, Yellow - 009590. Here are the top ones.
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Yellow ball for gym, playground, or classroom activitiesRoto-molded, seamless construction for durabilityTactile surface for ease of graspMeasures 8-1/2โ in diameterItem comes flat, need to be inflated
Specs:
| Color | Yellow |
| Height | 8.5 Inches |
| Length | 8.5 Inches |
| Number of items | 1 |
| Size | 8" |
| Weight | 0.000625 Pounds |
| Width | 8.5 Inches |
>because the wind resistance is the same as its mass.
Force =/= mass. You meant to say that terminal velocity is achieved when the air resistance on an object is equal to its acceleration due to gravity.
>Reasonable answer, no math.
The OP asked for the math.
This ball is 25.4cm in diameter, and has a mass of 300 grams (shipping weight). A 25.4cm sphere has a volume of 8580 cm^3, and therefore a density of .00438 grams/cm^3. Assuming a drag coefficient of .4, and falling through air with density 1.29 kg/m^3, the ball would reach terminal velocity at 7.506 m/s = about 16.8 mph. (I cheated, using the calculator here, because it's late and it's been 2 years since I took physics.)
So, your dodgeball hero could potentially release the ball at 85 mph (highly unlikely given the cumbersome nature of nerf balls, and the fact that 85mph is near professional fastball speed), but it would very quickly slow to a maximum of 16.8 mph while traveling through the air.