Arace car drives around a turn on a flat race track at constant speed. identify the force that allows the race car to travel around the turn? a) air resistance applies the force needed. b) no force is required to go around the turn. c) the weight of the car applies the force needed. d) the friction between the tires and the track applies the force needed

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.

An object in mechanical equilibrium is an object