4. a racehorse runs 1500m full circle in a racetrack ad returning to start. what is the dispacement of the horse?

a. 0 meters
b. -1500 m
c. -1600 m
d. 300 meters south

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

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