Final answer:
The kinetic energy of the table tennis ball is approximately 0.1568 Joules.
Step-by-step explanation:
To calculate the kinetic energy of the table tennis ball, we can use the equation Ek = 1/2mv², where Ek represents kinetic energy, m represents mass, and v represents velocity.
The question involves calculating the kinetic energy of a ping-pong ball moving at a given speed. Kinetic energy is expressed by the equation Ek = 1/2 mv², where m is the mass of the object and v is its velocity. In this case, we have a ping-pong ball with a mass of 2.45 g (which we must convert to kilograms to use SI units) and a speed of 4.0 m/s.
First, convert the mass from grams to kilograms: 2.45 g = 0.00245 kg
Given that the mass of the ball is 2.45 g and the velocity is 4.0 m/s, we can plug these values into the equation:
Ek = 1/2 * 0.00245 kg * (4.0 m/s)²
Ek = 0.0098 kg * 16.0 m²/s²
Ek = 0.1568 J
So, the kinetic energy of the table tennis ball is approximately 0.1568 Joules.