notsosmart4823 notsosmart4823
  • 22-02-2018
  • Physics
contestada

If a car increases its speed from 20 mph to 60 mph, by what factor does the kinetic energy of the car increase

Relax

Respuesta :

Baddie23
Baddie23 Baddie23
  • 22-03-2018
Mass is constant. 

Therefore, KE2/KE1 = v2^2/v1^2 = 60^2/30^2 = 4. 

Answer is by a factor of 4.
Answer Link

Otras preguntas

Factor each polynomial using GCF 18c to fourth power-9csquared+7c
How do muscles work in pairs to move the human body?
Synonyms have _______ meaning. a. opposite b. narrative c. distinctive d. the same
When and where exactly did the Civil War started?
Que te gusta comer por que y donde
Hughes was assigned to find infected cow parts at meat processing plants in Washington. He remembers the sad look on some owners’ faces when he flashed his badg
What numerical expression would provide the solutions to the equation 7x^2+4x-8=14? Why?
Who is the winner in IDOL-England?
simplify (1-(-1/3)) (1-5/6)
How can carbon 14 and carbon 12 be the same element when both have the same number of protons (6 protons) but different number of neutrons? explain your answer