Do these as well as the second problem sheet tonight.
Centripetal Acceleration and Force Problems.
1. A 1800 kg car going at 55 mph ( 1 m/s =2.24 mph) goes around a curve with a radius of 100m. What is the car’s centripetal acceleration, ac? What is the friction force required for it to make this turn?
2. A satellite of 80 kg mass orbits the earth at a distance of 6.6x10^6 m from the earth’s center. It makes one orbit (one rotation) in 5300 seconds. What is its ac? What is the force required to keep it in orbit? What supplies this force (what kind of force is it)?
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