ryanzachmathew ryanzachmathew
  • 14-12-2021
  • Physics
contestada

A bullet of mass 20 g has its kinetic energy equal to 400 J. Find the speed of the bullet.

Respuesta :

Аноним Аноним
  • 14-12-2021

Answer:

  • m=20g=0.02kg
  • K.E=400J

[tex]\\ \sf\longmapsto KE=\dfrac{1}{2}mv^2[/tex]

[tex]\\ \sf\longmapsto \dfrac{1}{2}(0.02)v^2=400[/tex]

[tex]\\ \sf\longmapsto 0.01v^2=400[/tex]

[tex]\\ \sf\longmapsto v^2=40000[/tex]

[tex]\\ \sf\longmapsto v=200m/s[/tex]

Answer Link

Otras preguntas

Who was Willie Lynch
How can the government reduce the wealth gap in a mixed market economy
6 1/8+4 2/5 Show how you got the answer
Peter answered 15 questions on a quiz and obtained 29 points. If 3 points were given for each correct answer and one point deducted for each wrong answer, how m
Colin and Dan are marking exam papers. Each set takes Colin 20 minutes and Dan 1 hour. Express the times Colin and Dan take as a ratio. Give your answer in its
10. A cube has surface area 6534 square feet. What is its volume?
what is a time slot on calendar
Elena and Koran are playing a board game. After one round, Elena says, “You earned so many more points than I did. If you earned 5 more points, your score would
honestly i dont wanna do this so
Boyle's Law states that as the pressure on a gas increases at constant temperature the volume of the gas A) Increases B) Decreases C) Stays the same D) There i