Question

find distance and displacement if a person walks around a circular path of radius 14 cm and cover five and half round​

Answer 1

Answer:

Very simple. Displacement is a vector quantity whose magnitude is the shortest distance between initial and final positions while the distance is the length of the path followed between the initial and final positions.

After completing 5 and A Half rounds, the object comes back to its initial position, so the displacement is zero. The length of the path followed is two times the circumference of the circular path. So the distance covered by the object in  5 and A Half rounds is

s = 2 × 2πr

=4×22 / 7×14  

=176cm

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