Find the velocity of a thrown baseball?

Question

In physics, transitional kinetic energy E(in joules) is given by the equation: E=1/2mv²,where m represents mass(in kilograms), and v the velocity (in meters per second). Find the velocity of a thrown baseball at time of release whose mass is 0.148kg, and whose transitional kinetic energy to 90.65 joules?

Answer 1

E = (1/2)mv²

 

where E = 90.65 joules and m = 0.148 kg

 

90.65 = (1/2)(0.148)v²

 

Solve for v.