Question

A 30 kg dog runs at a speed of 15 -

What is the dog's kinetic energy?
Round answer to two significant digits.

Answer 1

Answer: The energy of dog is
`3.4* 10^3J`

Step-by-step explanation:

The energy which a body possesses by virtue of being in motion is called as kinetic energy.

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

m = mass of body in kg

v = speed of body in m/s

`K.E=(1)/(2)* 30* 15^2`

`K.E=3375kgm^2s^(-2)=3375J`

Thus kinetic energy of dog is
`3.4* 10^3J`