Question

What does the odometer of an automobile measure? Which of the following is moving faster? Justify your answer.
(i) A scooter moving with a speed of 300 m per I minute.
(ii) A car moving with a speed of 36 km per hour.

Answer 1

Odometer measures the distance of the automobile.
(i) is moving faster

Answer 2

The odometer measures the distance travelled by the car.

Speed of car converted to m/s

Speed of car = 36 km/hr

36 km/hr x 5/18  (conversion to m/s)

= 10 m/s

Speed of scooter converted to m/s

Speed of scooter = 300m/min

= 300m/60 seconds ( 1 min = 60 seconds)

= 5 m/s

Final Answer:

The car is moving faster than the scooter.

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