Q7 of 47 Page 8

What does the odometer of an automobile measure?

Odometer is a device that measures the distance travelled by an automobile based on the perimeter of the wheel as the wheel rotates. The odometer gives us only the number it does not show us the direction of velocity. The odometer measure the scalar quantity – the speed of the car.

More from this chapter

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5

If a sprinter runs a distance of 1000 metres in 9.83 seconds, calculate his average speed in km/h

 6

Given below is the velocity-time graph for the motion of the car. What does the nature of the graph show? Also, find the acceleration of the car.

 8

Which of the following is true for displacement?

(a) It cannot be zero.


(b) Its magnitude is greater than the distance travelled by the object.

 9

A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position?