TalanC775571 TalanC775571
  • 03-11-2022
  • Physics
contestada

A 1 kg mass has a kinetic energy of 1 Joule when its speed isA. 0.45 m/sB. 1.4 m/sC. 1 m/sD. 4.4 m/s

Respuesta :

BrodinM56316 BrodinM56316
  • 03-11-2022

Kinetic energy = 1/2 x mass x velocity^2

Where:

Kinetic energy = 1 J

mass = 1 kg

Isolate v (speed)

KE = 1/2 m v^2

√(2KE/m) = v

v = √(2KE/m)

Replacing with the values given:

v = √(2*1/1)

v= √2 = 1.4 m/s

Answer: 1.4 m/s (B)

Answer Link

Otras preguntas

what does citizen mean?
Which is greater than 4? (a) 5, (b) -5, ...
a group of large, colorful feathers the answer is 5 letters
Solve for z z − 4 = 8 z =
What is the approximate vapor pressure when the liquid water boils at about 50°C?
Which theorem or postulate justifies this statement? ∠6≅∠13
Physics students drop a ball from the top of a 100 foot high building and model its height above the ground as a function of time with the equation   2 ht  
a mass of 0.75 kg is attached to a spring and placed on a horizontal surface. the spring has a spring constant of 180 N/m, and the spring is compressed 0.3 m pa
A runner has run 2.281 kilometers of a 10 kilometer race. How much farther does he need to run to finish the race? Show your work.
The equation y = −3x + 7 represents the amount of water y left in a 7-gallon tub after x minutes. Complete the statements about the graph of the equation.Part A