Answer:
45.31 J
Explanation:
We are given that
Mass of baseball , m=0.145 kg
Initial velocity, u=0
Final velocity, v=25 m/s
We have to find the work done on the baseball to bring it from rest to 25 m/s
We know that
Work done = Change in kinetic energy
Work done, W=[tex]\frac{1}{2}m(v^2-u^2)[/tex]
Using the formula
Work done, W[tex]=\frac{1}{2}(0.145)((25)^2-0)[/tex]
Work done=[tex]\frac{1}{2}(0.145)(625)[/tex]
Work done, W=45.31 J
Hence, the work done on the baseball to bring it from rest to 25 m/s
=45.31 J
