Centripetal force Definition and 558 Threads

If there is a car with a mass of 1200 kg and the radius of the curvature is 25m, and the speed is 43km/h, what is the acceleration? How do I find the acceleration At what speed would the centripetal force equal the force of gravity? ( I got 15.7 m/s but I'm not sure if this is right)...

I have a problem here that looks simple to me, but has been driving me crazy: Basically, it's an object weighing 3.33N at the end of a string of unknown length, which is in turn attached to a spring scale. The object is being spun in a circle with a radius of 1.49m. The person spinning the...

This is a weird question but live with me please. I was completing a math competition (www.comap.com)with my team today and when we finished I started wondering about that "room" airforce pilots and NASA astronauts go into. I can't remember the name of the "room" but it is where they get...

a) A 22 kg child is riding a merry-go-round that is rotating at 40 rpm. What centripetal Force must she exert to stay on if she is 1.25 m from its center? 40 rpm = 4.19 rad/s r = 1.25 m Ac = (4.19 rad/s)^2 * (1.25 m) = 21.95 m/s^2 F = (22 kg) * ( 21.95 m/s^2) = 482.9 N b) What...

challenging physics problems...uniform circular motion, centripetal force here is the setup, we had a lab in class, in which a string was strung through a plastic tube. On on end, rubber stoppers were attached and in this case acted as a mass. On the other end, metal masses were hooked on to...

What is the relationship between centripetal force,mass, radius, and period of motion? The motion is in horizontal loops Is there an equation for this?

Hi guys! I have solved some physics problems and was wondering if anyone would check over my work to reassure me of my answers? That would be great! 1) A pilot having a mass of 75 kg flies a plane in a vertical loop. At the top of the loop, where the plane is completely upside down, the...

Browsing through my physics book... The book defines velocity as the limit(t->0) [Δx/Δt], which of course makes sense. An acceleration can occur in two ways: either the speed (speed= ||v||) changes or the direction of the velocity changes. Centripetal acceleration (||a|| is...