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

What is the function/importance of the muscular system?
Please help I’m terrible at math
f(x) = 3x3 - 4x2 + 5 and g(x) = x2 + 2x - 6
Transcendents were known for... Following organized religions, being loyal to the pope, using nature as a teacher, making high-quality crafts.
Rachel received a $90 gift card for a coffee store. She used it in buying some coffee that cost $7.74 per pound. After buying the coffee, she had $66.78 left on
Which is equivalent
Transcendents were known for... Following organized religions, being loyal to the pope, using nature as a teacher, making high-quality crafts.
What part of the US government that interprets laws ?
Energy release is to condensation as energy input is to _________. A. deposition B. sublimation C. freezing D. dispersion
Blockade-running was done by many: