Recent content by KLI897

Homework Statement A car travels over a hump in the road of radius 20 meters. How fast is the car traveling if the occupants feel a net acceleration of 3.8 m/s2 Homework Equations a = v2/r v = √ar The Attempt at a Solution I did this but according to my teacher this isn't correct. v = √(3.8...

Thank you! I've concluded that the force of the sun's pull at aphelion is only 1/8100 of whatever it is at perihelion by using the inverse-square law . It was much simpler than I originally thought, I must've been over thinking it.

Homework Statement Halley’s Comet orbits the sun about every 75 years due to the gravitational force the sun provides. Compare the gravitational force between Halley’s Comet and the sun when the comet is at aphelion (its greatest distance from the sun) and d is about 4.5 x 10^12 m to the force...