Khan Academy: Centripetal Acceleration: Loop De Loop Question

A video lecture solving a problem of figuring out the car's average speed while completing the loop de loop. Problem uses video analysis software. [4:47]

Figuring out the minimum speed at the top of the loop de loop to stay on the track

A video proving that a = v^2/r in regards to centripetal acceleration. [14:22]

This video lecture will use the Universal Law of Gravitation to calculate the acceleration due to gravity at the surface of the Earth. Video will then calculate the space station's acceleration due to gravity. [10:12]

Figure out how all of those physiology terms - end-systolic, end-diastolic, pulse pressure, stroke volume, and ejection fraction - can be easily understood using the pressure-volume loop. Rishi is a pediatric infectious disease physician...

Understand LaPlace's law to see the effect that pressure, radius, and wall thickness each have on the "wall stress" in the left ventricle to answer the question of why the heart never gets a rip or tear. Rishi is a pediatric infectious...

Understand what is happening at the cellular level to cause two identical left ventricular volumes to have such different pressures! Rishi is a pediatric infectious disease physician and works at Khan Academy.

Ever wonder exactly how the left ventricle's pressure changes over time? Find out in this color-coded video! Rishi is a pediatric infectious disease physician and works at Khan Academy. [10:51]

Even clothing styles are part of a feedback loop. Learners explore four different examples of feedback loops both outside of and within the body: speed limit signs, thermostats, thermoregulation, and blood glucose levels. They...

Learn about the direction of the force in cases of circular motion at constant speeds. [10:47]