Question

 A 5000kg truck has 400000J of kinetic energy. How fast is it moving​

Answer 1

Answer:

Given :

Mass of truck = 5000 Kg

Kinetic energy of truck = 400000 J

To Find :-

Velocity of the truck

Solution :-

By using kinetic energy formula

★ Kinetic energy = 1/2 mv²

⇒ 400000 = 1/2 × 5000 × v²

⇒ 400000 = 2500v²

⇒ v² = 400000 / 2500

⇒ v² = 160

⇒ v = √160

⇒ v ≈ 12.7 m/s

Truck is moving with a velocity of 12.7 m/s

Explanation:

Answer 2

Answer:

12.6 m/s

Explanation:

please have a look on the attachment