What is the kinetic energy of a 0.155-kg baseball thrown at 50.0 m/s (112 mph)?

Name: What is the kinetic energy of a 0.155-kg baseball thrown at 50.0 m/s (112 mph)?
Brand: Quizplus
Rating: 4.9 (60 reviews)

Question

Quizplus · Accepted Answer

The formula for kinetic energy is K = 1/2mv^2. 
Converting the speed to m/s, we get 22.352 m/s. 
Plugging in the mass and speed, we get:

K = 1/2(0.155 kg)(22.352 m/s)^2 
K = 193.75 J

Therefore, the correct answer is C.

What Is the Kinetic Energy of a 0