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Masterinc 01 Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemiD-885281168offset-next What distance, in km, does the car travel? Express your answer to two significant figures. The Nardo ring is a circular test track for cars. It of 12.5 km. Cars trave has a circumf around the track at a constant speed of 100 km/h. A car starts at the easternmost point of the ring and km drives for 30 minutes at this speed. distance = Request Answer PartB What is the magnitude of the car's displacement, in km, from its initial position? Express your answer to two significant figures km

Explanation / Answer

A)

v = speed = 100 km/h

t = time of travel = 30 min = 0.5 h

distance travelled is given as

d = v t = 100 x 0.5

d = 50 km

b)

C = circumference length = 12.5 km

n = number of turns by the car = d/C = 50/12.5 = 4 turns

since the car makes 4 complete turns and arrive at same position at which it started.

hence displacement = 0 km

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