Question

An athlete completes one round of a circular track of diameter 200m in 40s.What will be the distance covered and the displacement at the end of 2min 20 sec

Answer 1

displacement= final position - initial position

circumference of circle=2πr=2×3.14×200=1256m

total time take by 2min 20sec = 140 sec

time taken to cover one circle=40sec

in 140 sec no.of rounds complete=140/40=3.5

for complete three rounds displacement =0

and for half circle displacement =1256/2=628m

Answer 2

Answer:

your answer in given pic

Explanation:

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