rombon8aCeCib rombon8aCeCib
  • 04-03-2017
  • Physics
contestada

Calculate the kinetic energy in joules of a 1,500 kg car that is moving at a speed of 42 km/h

Respuesta :

dexteright02
dexteright02 dexteright02
  • 08-03-2017
Data:
KE (Kinetic Energy) = ? (Joule)
m (mass) = 1500 Kg 
v (speed) = 42 Km/h
converting to m/s (42 / 3.6), we have: v (speed) = 11.6 m/s

Formula:
[tex]K_{E} = \frac{1}{2} m*v^2[/tex]

Solving:
[tex]K_{E} = \frac{1}{2} m*v^2[/tex]
[tex]K_{E} = \frac{1}{2} *1500*(11.6)^2[/tex]
[tex]K_{E} = \frac{1}{2} *1500*134.56[/tex]
[tex]K_{E} = \frac{201840}{2} [/tex]
[tex]\boxed{\boxed{K_{E} = 100920\:Joule}}\end{array}}\qquad\quad\checkmark[/tex]





Answer Link

Otras preguntas

5) From 6469 ft to 7488 ft What is the percent of change
AABC is inscribed in the circle. If mĀC = 112º and ZA ZC, find mbc. A. 560 B. 62° C 1120 D. 1240
2. Why is proper cleaning, sanitizing and disinfecting so important?
what is radian measure in geometry? what do you use it for?​
Scientist completely understand how the charges inside of a cloud occur? True False
6. A Marissa le gusta mucho Xochimilco. cierto falso
Which statements describe the process of scientific inquiry? Check all that apply. Scientific inquiry is used only by scientists. Scientific inquiry is a proces
Which of the following best explains how Social Darwinism was used to justify imperialism? A. Europeans believed they should incorporate aspects of the cult
Find the net force on each box. 60 N 20 N 50 N 25 N​
Question 1 (1 point) Which word best describes the scope of the Silk Road? Question 1 options: Intergalactic Interstate Interminable intercontinental Question