Question

if the majority of the baseball’s kinetic energy comes from power generation in the legs and hips, approximately how much energy do the lower extremities produce in the pitch?

Answer 1

Step-by-step explanation:

140 J

The kinetic energy of the baseball can be calculated using the equation 1/2 mv2. Paragraph 2 tells us that the average velocity of the ball is 30 m/s and its mass is 150 g, which is equivalent to 0.15 kg.

KE = (½)(0.15 kg)(30 m/s)2

KE = (½)(0.15)(900)

KE = (0.15)(450) = 67.5 J