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Can Velocity Be Zero While Acceleration Is Not?

Can Velocity Be Zero While Acceleration Is Not?

by Raul Barrea | Oct 8, 2026 | article, Motion & Forces

If Centripetal Acceleration Points Inward, Why Doesn’t the Object Move Inward?

If Centripetal Acceleration Points Inward, Why Doesn’t the Object Move Inward?

by Raul Barrea | Oct 8, 2026 | article, Rotation & Gravitation

Why Doesn’t Centripetal Acceleration Change Speed?

Why Doesn’t Centripetal Acceleration Change Speed?

by Raul Barrea | Oct 8, 2026 | article, Rotation & Gravitation

Foundational Physics Short Answer: Centripetal acceleration changes the direction of an object’s velocity, not its magnitude, because it acts perpendicular to the direction of motion. Sensei’s Warning Acceleration does not always mean speeding up or slowing...
Why Isn’t Centripetal Force a Separate Force?

Why Isn’t Centripetal Force a Separate Force?

by Raul Barrea | Oct 8, 2026 | article, Rotation & Gravitation

Foundational Physics Short Answer: Centripetal force is not a separate type of force. It is the name given to the net inward force needed for circular motion, supplied by real forces such as tension, friction, or gravity. Sensei’s Warning Never add an extra...
Why Do You Need an Inward Force to Move in a Circle?

Why Do You Need an Inward Force to Move in a Circle?

by Raul Barrea | Oct 8, 2026 | article, Rotation & Gravitation

Why Is Acceleration Zero at Terminal Velocity?

Why Is Acceleration Zero at Terminal Velocity?

by Raul Barrea | Oct 8, 2026 | article, Motion & Forces

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