A car travels south on a highway for 2 h at 90 km/h. The car reverses direction and headed north for 0.5 h at 80 km/h. what is the cars position relative to where is started?

The charge on a charged sphere is: a)concentrated at its centerb)distributed uniformly throughout its volumec)clustered on its centerd)distributed uniformly over its surface

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination.at the turning point, how far is the second student from the destination?