Respuesta :
Answer:
The kinetic energy of tennis ball is higher than that of baseball.
Explanation:
mass of baseball [tex]m_{b}[/tex] = 0.14 kg
velocity of baseball [tex]v_{b}[/tex] = 41 m/s
mass of tennis ball [tex]m_{t}[/tex] = 0.058 kg
velocity of tennis ball [tex]v_{t}[/tex]= 67 m/s
To find: the kinetic energy of baseball [tex]KE_{b}[/tex] and tennis ball [tex]KE_{t}[/tex]
We know that the kinetic energy is given by the equation,
KE = [tex]\frac{mv^{2}}{2}[/tex]
the kinetic energy of baseball [tex]KE_{b}[/tex] = [tex]\frac{m_{b}v_{b} ^{2}}{2}[/tex]
= [tex]\frac{0.14 * 41^{2}}{2}[/tex]
= 117.67 J
the kinetic energy of tennis ball [tex]KE_{t}[/tex] = [tex]\frac{m_{t}v_{t} ^{2}}{2}[/tex]
= [tex]\frac{0.058 * 67^{2}}{2}[/tex]
= 130.181 J
Hence [tex]KE_{t}[/tex] > [tex]KE_{b}[/tex], the kinetic energy of tennis ball is higher than that of baseball
