Question

An athlete completes a round of a circular track of diameter 200 m in 20 sec. Calculate the distance covered & the displacement at the end of 1 min, and 10 sec.

Answer 1

Answer:

2200 m is the distance

Explanation:

Answer 2

Explanation:

given:-

diameter of circular path=200m

time taken to complete one round

or time period T= 20 seconds

solution:-

distance covered in one minute

= pi× diameter× time given / T

= 3.14×200×60/20

distance = 1884 meter

displacement = 0 due to

initial position

again. after 10 sec distance covered

= pi× diameter× time taken/T

=. 3.14×200×10/20

distance= 314 meter

displacement = diameter = 200 m due to half revolution in 10 sec

( the minimum distance from initial position is equal to chord of circular path is called displacement in circular motion)