Q1 of 53 Page 199

Write the SI unit of the both distance and displacement

Displacement refers to the measure of the shortest path between any two points whereas distance is the measurement of path between two points. The SI unit of both distance and displacement is meter (m).


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2

State whether displacement is a scalar or a vector quantity.

 3

What is the displacement of a satellite when it makes a complete round along its circular path?

 4

In which one of the following cases will the distance covered and the magnitude of the displacement are not the same? Justify.

(i) A passenger in a train travels from Delhi to Kolkata.


(ii) A raindrop falling in still air.


(iii) An athlete completes one lap in a race.

 5

After studying the motion of a ball rolling on a straight line as shown in the figure.


Find its distance and displacement covered.


(i) when it rolls from P to Q and then to R (i.e., P to Q to R)


(ii) Finally comes back to P (i.e., P to P)(take, P as reference point).