thatdolldylll
thatdolldylll thatdolldylll
  • 16-01-2020
  • Chemistry
contestada

If a ball has a velocity of 15 m/s and a kinetic energy of 225 J, what is the mass of the ball?

Respuesta :

ednorobello92 ednorobello92
  • 16-01-2020

Answer: 2 kg.

Explanation: Kinetic Energy is expressed as the product of mass and squared of velocity over two KE=1/2 mv² . Derive the following expression for mass. m=2KE/v² then substitute the values 2(225J)/ (15 m/s)² =2kg

Answer Link
josshyaby
josshyaby josshyaby
  • 16-01-2020

Answer:

Explanation:

Kinetic energy = 1/2 ×m × v^2

Kinetic energy = 225J

Velocity v = 15m/s

225 = 1/2 × m × 15^2

225×2 = 225 × m

450 = 225m

m = 450/225

m = 2kg

Mass is 2kg

Answer Link

Otras preguntas

? + 59 5/8= 82 2/3 equals what?
Please help! Will mark brainliest
Please help me answer this, I don't get what I'm supposed to do TvT
Which statement about tornadoes is TRUE? Select one: Tornadoes occur randomly all over the planet, so it is impossible to determine where tornado risk is high.
Due in 5 minutes Please
Record 2 observations and 1 question about the ancient Maya video.
HELP!!! Henri .......... à Montpellier avec sa femme. (aller) Ils ......... un appartement dans un vieux quartier. ( acheter) Henri ...... un travail dans un hô
What is the theme of “Claudine’s Tack Attack”?
who invented the lawnmower!!!!!
help plsssss ill mark brainliest​