victorpila05
victorpila05 victorpila05
  • 03-04-2020
  • Physics
contestada

Does a 0.14 kg baseball moving at 41 m/s or a 0.058-kg tennis ball moving at 67 m/s
have more kinetic energy?

Respuesta :

mberisso
mberisso mberisso
  • 03-04-2020

Answer:

The tennis ball has more kinetic energy

Explanation:

Recall the formula for kinetic energy: [tex]K=\frac{1}{2} \,m\,v^2[/tex] , so we can estimate it for each case and compare the results:

For the baseball:

[tex]K=\frac{1}{2} \,m\,v^2\\K=\frac{1}{2} \,0.14\,(41)^2\,\,J\\K=117.67\,\,J[/tex]

For the tennis ball:

[tex]K=\frac{1}{2} \,m\,v^2\\K=\frac{1}{2} \,0.058\,(67)^2\,\,J\\K=130.181\,\,J[/tex]

Therefore, the tennis ball has more kinetic energy

Answer Link

Otras preguntas

Chains of amino acids are known as
What is the diameter of a hemisphere with the volume of 74466
HELP!!! (50 pts) According to the Article, which of these happened third? A.The Grand Canyon was named a national park by U.S. lawmakers. B.Native American peop
please help i am confused.
Give a one-line description of the constitution. Please!: )
Does anyone know the answer to this ?? PLEASE HELP. No links please, don’t answer if you don’t know it :,)
is it adjacent or vertical find the value of X
please help with 1 or 2 i’ll mark brainly
A small car with mass of 0.800 kg travels at a constant speed on the inside of a track that is a vertical circle with radius 5.00 m. If the normal force exerted
Please Help! In a proof to show two triangles are congruent if a given is PR ⟂ CK, which of the following statements most likely will be used within the proof?