Centripetal Force Equation:
From: | To: |
Centripetal force is the force that keeps an object moving in a circular path. It always acts toward the center of rotation and is perpendicular to the object's velocity vector.
The calculator uses the centripetal force equation:
Where:
Explanation: The equation shows that centripetal force is proportional to the mass and the square of velocity, and inversely proportional to the radius of the circular path.
Details: Calculating centripetal force is essential in various applications including vehicle design (curved roads, roller coasters), satellite orbit calculations, and understanding circular motion in physics experiments.
Tips: Enter mass in kilograms, velocity in meters per second, and radius in meters. All values must be positive numbers greater than zero.
Q1: What's the difference between centripetal and centrifugal force?
A: Centripetal force is the real force that keeps objects in circular motion, while centrifugal force is a perceived outward force in a rotating reference frame.
Q2: Can centripetal force change an object's speed?
A: No, centripetal force only changes the direction of motion, not the speed. It acts perpendicular to the velocity vector.
Q3: What are some real-world examples of centripetal force?
A: Examples include Earth's gravity keeping the Moon in orbit, tension in a string for a spinning ball, and friction between tires and road for a turning car.
Q4: How does radius affect centripetal force?
A: For the same mass and velocity, a smaller radius requires greater centripetal force to maintain circular motion.
Q5: What happens if centripetal force is removed?
A: The object will move in a straight line tangent to its previous circular path, following Newton's first law of motion.