Final answer:
The subject of this question is Physics. The question involves a hollow steel ball suspended from a spring, which is a topic that falls under the study of mechanical waves and oscillations. In order to answer the question, we need to understand the basic principles of simple harmonic motion and how it applies to the motion of a pendulum.
Step-by-step explanation:
The subject of this question is Physics. The question involves a hollow steel ball suspended from a spring, which is a topic that falls under the study of mechanical waves and oscillations.
In order to answer the question, we need to understand the basic principles of simple harmonic motion and how it applies to the motion of a pendulum. The weight of the ball provides the force that stretches the spring, and the motion of the ball can be described by the equation of motion.
By using the principles of simple harmonic motion, we can calculate the velocity of the ball at different points in its motion.