Question

9. What is the speed of a 25 kg object that has 2500 J of kinetic energy?

Answer 1

We conclude that the speed of a 25 kg object that has 2500 J of kinetic energy is 14.14 m/s.

Step-by-step explanation:

Given

• Mass m = 25 kg

• Kinetic Energy (K.E) = 2500 J

To determine

• The speed v = ?

We know that a body can possess energy due to its movement — Kinetic Energy.

The speed with which a body moves can be determined using the formula

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

`v=\sqrt{(2* \:K.E)/(m)}\:\:\:`

substituting m = 25 and K.E = 2500 in the formula

`v=\sqrt{(2* 2500)/(25)}`

`v=\sqrt{(5000)/(25)}`

`v=√(200)`

`v=14.14` m/s

Therefore, we conclude that the speed of a 25 kg object that has 2500 J of kinetic energy is 14.14 m/s.