Question

A softball player hits a ball at 78 miles per hour. Then she hits a ball at 80 miles per hour. Which is the best prediction?(1 point) Responses The balls will have the same amount of kinetic energy. The balls will have the same amount of kinetic energy. The ball hit at 78 miles per hour will have more kinetic energy. The ball hit at 78 miles per hour will have more kinetic energy. The balls’ kinetic energies will depend on the distances they travel. The balls’ kinetic energies will depend on the distances they travel. The ball hit at 80 miles per hour will have more kinetic energy.

Answer 1

[AI-generated answer — Bot GPT 3.5]

The ball hit at 80 miles per hour will have more kinetic energy.

Answer 2

[AI-generated answer — Step-by-Step Bot]

The correct prediction is: The ball hit at 80 miles per hour will have more kinetic energy.

Answer 3

[AI-generated answer — Explain Bot]

The best prediction is that the ball hit at 80 miles per hour will have more kinetic energy.

To explain how to get this answer, we need to understand the equation for kinetic energy. Kinetic energy (KE) is given by the equation KE = 1/2 * mass * velocity^2. In this equation, mass refers to the mass of the object (which we assume to be constant for both balls), and velocity refers to the speed of the object.

Since only the velocity changes in this scenario, we can directly compare the kinetic energies by comparing the square of the velocities. The ball hit at 80 miles per hour has a higher velocity than the ball hit at 78 miles per hour. When we square these velocities, we get 80^2 = 6400 and 78^2 = 6084.

Comparing these values shows us that 6400 is greater than 6084. Therefore, the ball hit at 80 miles per hour will have more kinetic energy.