For many years, hitters have claimed that some baseball pitchers have the ability to actually throw a rising fastball. assuming that a top major leaguer pitcher can throw a 95-mph pitch and impart a 1800-rpm spin to the ball, is it possible for the ball to actually rise? assume the baseball diameter is 2.9 in. and its weight is 5.25 oz.

Answer

given,

speed = 95 mph

N = 1800 rpm

diameter = 2.9 in

weight = 5.25 oz

   ω = 188.5 rad/s

U = 95 x 1.467 ft/s

U = 139.33 ft/s

calculate the ratio

    ratio = 0.163

coefficient of lift corresponding to 0.163 from the lift and drag coefficient

   C_L = 0.04

ρ is the density of air

Lift produce

     L = 0.04238 lb

weight

     W = 0.32815 lb

it should be -8.6 cm hope this out

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )