Question

Which law of motion is also known as the Law of Acceleration?

• A. First
• B. Second
• C. Third
• D. Fourth

Hint:

Second law connects force and motion mathematically using \( F = ma \), making it the most practical law in problem-solving.

Answer 1

The Correct Option is B

To solve the question about which law of motion is known as the Law of Acceleration, we need to examine Newton's laws of motion. These laws are fundamental principles of classical mechanics and explain how objects move under the influence of forces. Let's analyze each option:

1. First Law of Motion: This law is also known as the Law of Inertia. It states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. This law is primarily concerned with the state of rest or uniform motion.
2. Second Law of Motion: This law is known as the Law of Acceleration. It states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, it can be expressed as F = ma, where F is the net force applied, m is the mass, and a is the acceleration produced. This equation shows that force causes changes in the motion of an object, making it the Law of Acceleration.
3. Third Law of Motion: This is known as the Law of Action and Reaction. It states that for every action, there is an equal and opposite reaction. This law deals with interactions between two bodies.
4. Fourth Law: There is no fourth law in Newton's original laws of motion.

Given the options, the correct answer is the Second law of motion because it specifically defines the relationship between force and acceleration, thus earning the name "Law of Acceleration."