Question

Q1. A boy starts moving from his home and reaches the market 3 km away. Then he takes a left turn and reaches his friend’s place which is 1 km away from the market. From his friend’s place he takes another left turn and covers 3 km to reach the doctor

a) Draw a diagrammatic representation of the information given above.

b) Find the total distance travelled by the boy.

c) Find the magnitude of his displacement from the starting point.

Answer 1

a) A diagrammatic representation of the information given above.

b) As one can see on the figure, the total distance travelled by the boy is $3km+1km+3km = 7 km$

c)  The magnitude of his displacement from the starting point is denoted by $d$ on the figure. From the rectangle Home-Market-Friend-Doctor, the distance d is equal to 1 km.