Physics for IGCSE & O level - Forces And Motion (Section 12 - No. 36)
What happens to the centripetal force if the speed of an object moving in a circle is doubled, while the radius and mass stay the same?
It doubles.
It quadruples.
It halves.
It remains the same.
Vysvětlení
Centripetal force is proportional to the square of the speed.