Question

what is the kinetic energy of a girl who has a mass of 30kg and a velocity of 4m/s​

Answer 1

Answer:

Given,

Mass(m) =30kg

Velocity(v) =4 m/s

Therefore,

Kinetic energy

\begin{gathered}= \frac{1}{2} m {v}^{2} \\ = \frac{1}{2} \times 30 \times {(4)}^{2} \\ = \frac{1}{2} \times 30 \times 16 \\ = 30 \times 8 \\ = 240\end{gathered}

=

2

1

mv

2

=

2

1

×30×(4)

2

=

2

1

×30×16

=30×8

=240

Answer is:-240J(Joule)

Answer 2

Answer:

1/2 m/ v ²

Explanation:

so the kinetic energy for the given data is 240 J

I Hope its helpful for you dear.....