Question

Reema moves along a circular path of radius 7m.she complete two full rounds in 16sec.find average speed and average velocity of reema​

Answer 1

average velocity is zero is a velocity displacement overtime and displacement on a circle is zero if you start and end at the same point.

average speed is distance over time.

circumference of circle is 2πr

Assuming π= 3.14

distance covered in 2 revolution =

2× (2×π×7) = 2× 43.96 = 87.92m

Time taken = 16 seconds

speed = 87.92m/16 = 5.495m/s