Centripetal force | Physics | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/h... A centripetal force acts perpendicular to an object's velocity. A centripetal force causes an object to accelerate by changing direction and following a curved path. The centripetal force points towards the center of the curve, and the object's velocity is tangent to the curve. Centripetal force is not a type of force, but a role that can be played by different forces. Gravity acts as the centripetal force on orbiting objects. Sections: 00:00 - Intro 00:23 - Orbiting objects are falling 01:49 - What is a centripetal force? 06:59 - Centripetal force is NOT a new force 07:32 - Centripetal force for a spinning yo-yo 09:59 - Centripetal and non-centripetal forces 10:37 - Real life scenario 12:20 - Why don't orbiting satellites fall to Earth? ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate here: https://www.khanacademy.org/donate?ut... Volunteer here: https://www.khanacademy.org/contribut...