A flight attendant who is walking 2 mph toward the nose of a plane that is traveling 500 miles per hour is moving at a combined velocity of?​

Abearing is designed to a reduce friction b. support a load c.guide moving parts such as wheels, shafts and pivots d. all of the above

Acar of mass m goes around a banked curve of radius r with speed v. if the road is frictionless due to ice, the car can still negotiate the curve if the horizontal component of the normal force on the car from the road is equal in magnitude to 101) a) mv2/r b) mg/2. d) mg e) tan[v2/(eg)]

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude