Question

What object has the most inertia?

• A. $2kg$ textbook
• B. $10kg$ rabbit
• C. $5kg$ cat
• D. $20kg$ cycle

Answer 1

The correct option is D

$20kg$ cycle

Inertia

1. The law of inertia, or Newton's first law, states that an object in motion stays in motion and an object at rest stays at rest.
2. The effort required to change the state of a thing is called inertia.
3. Inertia cannot be measured and is solely dependent on the mass of the object.
4. Therefore, the $20kg$cycle has the most inertia in the question since it has the biggest mass.

Hence, the correct answer is an option (D).