contestada

A ball of mass 200 g rolls along the ground at a speed of 5.2 m/s. Calculate the kinetic energy of the ball. Give your answer to two significant figures.

Respuesta :

johnsonabraham854

Answer:

Kinetic Energy = 2.7J

Explanation:

Conversion :

200g = 0.2kg

Kinetic Energy = ½ × mass × (velocity)²

Kinetic Energy = ½ × 0.2kg × (5.2m/s²)

Kinetic energy = ½ × 0.2kg × 27.04m²/s²

Kinetic Energy = 2.7J