171060332
171060332 171060332
  • 02-04-2021
  • Physics
contestada

What is the mass of an object moving at a speed of 9.0 m/s with a kinetic energy of 200 J?

Group of answer choices

2.5 kg

4.9 kg

44 kg

1.2 kg

0.81 kg

Respuesta :

shaunahollland shaunahollland
  • 02-04-2021
Ek= 1/2mv²
200=1/2 m(9 ²)
200=1/2(81)m
200=40.5m
m=200/40.5
m=4.93kg

Answer: 4.9 kg (second option)
Answer Link

Otras preguntas

1.2 explain how communication affects relationships in the work setting
If you rotate a right triangle, what feature of the triangle changes? a. leg lengths b. angle measures c. length of hypotenuse d. position of the triangle
though written about the salem witch trials, the crucible also conveys miller’s views on _____.
you have a work meeting that at 1:15 you arrived at 12:53 how many minutes early were you
the first city built in the babylonian empire was?
What percent of 85 is 19?
What problem did federalism solve when the constitution was being written.
how do you do number 2
Lee bottes sont grandes
One language can break into new languages by first breaking into a new _____.