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

Shanice had $1500 into her checking account when she went on a 7 week trip to Europe after her senior year. When she returned from Europe she had $450 in the ba
Find the solution of the system of equations. -x+2y=-15 8x-2y=-20
A 2-column table with 4 rows titled How many text messages do you send a day question mark. Column 1 has entries 0-50, 50-100, 100-150, more than 150. Column 2
mi esposo y yo ------------enfermos
Why did Spain encourage immigration to Louisiana in the late 1700s? to ensure the colony would be stronger militarily to get rid of Spain's lawbreakers and unhe
the slope from 2 points
YALL LIKE MY DOG LOL
write the equation of the line with slope of 5 and point (-3,6)​
Graph the image of the figure after a dilation with a scale factor of ½ centered at (4, 8).
X - 4y = 12 X - 5y = 15 PLS HELP ME SOLVE USING ELIMINATION