What is the speed of a 0.147 kg baseball if its kinetic energy is 107 J?
Answer in units of m/s
+394 KE= 0.5m*v2. Where m(a*s) is in kilo grams and v(elocity) is in meters per second.
Rearrange this formula to find velocity.
v= sqrt(2*KE/m)
v= sqrt(2*107/0.147)
v = 38.2 meters/second
That's 85.5 MPH (Typically considered a fast pitch for college and minor league. A skilled and practiced pitcher could throw this; most HS players coudn't come close).
_7UP_
+394 KE= 0.5m*v2. Where m(a*s) is in kilo grams and v(elocity) is in meters per second.
Rearrange this formula to find velocity.
v= sqrt(2*KE/m)
v= sqrt(2*107/0.147)
v = 38.2 meters/second
That's 85.5 MPH (Typically considered a fast pitch for college and minor league. A skilled and practiced pitcher could throw this; most HS players coudn't come close).
_7UP_
