keziah4020 keziah4020
  • 16-11-2020
  • Physics
contestada

A rolling ball has 8 joules of kinetic energy and is rolling 4m/s. Find it’s mass

Respuesta :

TheUnknownScientist
TheUnknownScientist TheUnknownScientist
  • 16-11-2020

Answer:

m = 1

Explanation:

K.E = 8J

v = 4m/s

m = ?

Now,

K.E = 1÷2mv^2

8 = 1÷2 × m × (4)^2

8 = 1÷2 × m × 16

8 = m × 8

m × 8 = 8

m = 8 ÷ 8 = 1

m = 1

VERIFICATION:

K.E. = 1÷2mv^2

K.E = 1÷2 × 1 × 4^2

K.E. = 8J

-TheUnknownScientist

Answer Link

Otras preguntas

Suppose that enzyme X catalyzes a reaction that involves the breakdown of a molecule. The product of this reaction is an amino acid. What molecule is the enzyme
Finley makes 1 batch of her favorite shade of orange paint by mixing 5 liters of yellow paint with 3 liters of red paint how many batches of orange paint can fi
HELP ME! Find the value of x and y.
HClO4+P4O10=H3PO4+Cl2O7 how do you balance this?
A total of 4000 cars were sold at a car dealership 480 Honda Civic‘s were sold and 1200 mazdas were sold what percentage of the cars were mazda
Which email writing etiquette should Ariel follow to let people know that she received their message? A. reply to their messages immediately B. use formal la
Can you help me with these two
Select the correct answer. If the aorta of the heart is damaged, which function of the heart will be affected first? A. Supplying oxygenated blood to the heart
Identify the two statements that contradict each other. A.
Please help ASAP 18 pts + brainliest to right/best answer