Question

What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s?


A.
5.0 J


B.
6.5 J


C.
10.0 J


D.
12.5 J

Answer 1

@kym02

Answer 2

Do you remember the formula?

Answer 3

i thiink so 1/2 times mass times (velocity squared)
12mv2

Answer 4

he equation for finding Kinetic Energy KE is half the mass m times velocity v squared.
KE=12mv2

Answer 5

correct! so since\[K _{E}=\frac{ 1 }{ 2 }mv ^{2}\]
then, \[\frac{ 1 }{ 2 } \times 1.0kg \times 5.0 ms ^{-1}\]
\[=12.5 J\]
So, the answer is D.

Answer 6

Thanks!

Answer 7

Anytime!