Abaseball weighing 0.324 lbs is thrown at 98 mph and hits a batter in the upper arm. what is the kinetic energy of the baseball at the moment before impact in joules?

Kinetic energy of the ball, E = 140.04 Joules

Explanation:

It is given that,

Mass of the baseball, m = 0.324 lbs = 0.146 kg

Speed of the baseball, v = 98 mph = 43.80 m/s

We need to find its kinetic energy at the moment before impact. Kinetic energy is given by :

E = 140.04 J

So, the kinetic energy of the baseball is 140.04 Joules. Hence, this is the required solution.

fgravity=10x10=100n case 1

fgravity=30x20=600n case 2

6 times more

i think it would be 5