Question

A cricketer makes a semi-circle around the playground whose diameter is 40 m. What is his Displacement

and distance travelled?​

Answer 1

Answer:

Answer. Displacement = Distance between initial and final position. When he travels exact half of the circle then the distance between initial and final position is nothing but diameter of circle. Hence his displacement is 40 m

Answer 2

Answer:

Distance = 62.83m (approximately)

Displacement = 40m

Explanation:

Diameter = 40m

Radius = 40/2 = 20m

Circumference = 2*22/7*20 = 125.66m (app.) (Using formula)

Semi-circle = half of circumference = 125.66/2 = 62.83m (app.)

Distance travelled = Half of circumference = 62.83m

Displacement = Distance between the starting and ending point

So…

Displacement = Diameter (Diameter connects two ends of a semicircle formed)

Displacement = 40m