Question

An athlete completes one round of a circular track of diameter 50m in 10s .what will be the distance covered and the displacement at the end 45 s

Answer 1

Answer:

50meter

Explanation:

In 10s he complete =1round

In 1sec he complete=1/10 round

In 45 sec he complete=1/10×45=4.5round

Distance=4.5 ×2πr

45/10×2×22/7×100

44×45×10=19800

Displacement =50 meter

Because he came to it's originated place