Abucket of water is whirled in a circle in a vertical plane. the radius of the circle is 0.85 m. what is the minimum speed that will just prevent the water from falling out of the bucket when it is upside down at the top of the circle?

Gravity is pulling an object into the sun. the closer the object gets to the sun, the greater the gravitational force that acts on the object, increasing its acceleration. a line graph plotting the speed of the object against time would have which shape? a: straight line of positive slope b: curved line that slopes upward c: curved line that slopes downward d: straight line of negative slope