Question

Calculate the kinetic energy in joules of a 10 G bullet moving at 300 m/s.

____J

A.15
B.45
C.450
D. 900

Answer 1

So the formula for kinetic energy is 1/2 mv^2

The answer is 450.

I hope this helps you!

Answer 2

The kinetic energy is 450 J.

(C) is correct option

Step-by-step explanation:

Given that,

Speed = 300 m/s

Mass of bullet = 10 g

We need to calculate the kinetic energy

Using formula of kinetic energy

`K.E=(1)/(2)mv^2`

Where, m = mass of bullet

v = speed of bullet

Put the value into the formula

`K.E=(1)/(2)*10*10^(-3)*(300)^2`

`K.E=450\ J`

Hence, The kinetic energy is 450 J.