an athlete completes one round of a circular track of radius R in 40 second what will be his displacement at the end of 2 minute 20 second
Answers
Answered by
15
heya.......
Total time duration in consideration : 2 min 40 secs = 160 secs
No of complete rounds in this time = 160/40 = 4 rounds
Therefore he will be exactly at the point where he started. Hence his displacement will be 0, although he will cover a distance of 4 (2πR)
tysm.#gozmit
Total time duration in consideration : 2 min 40 secs = 160 secs
No of complete rounds in this time = 160/40 = 4 rounds
Therefore he will be exactly at the point where he started. Hence his displacement will be 0, although he will cover a distance of 4 (2πR)
tysm.#gozmit
odi:
total time duration is 2 minutes 20 seconds so the answer would be 2R
Answered by
10
hyy friend here is ur answer
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Radius is r. Circumference is = 2 pi
r.
Time is 40 s.
Every 40 seconds he comes back to
original position l. So in 140 s he
would cover 3 and half circles.
Hence
Total distance is 2r pi x 3.5 = 7r pi.
Total displacement will be = 2r
since ball will be directly across the
diameter .
.
.
.
.
if u like my answer then mark as brainliast
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#ar
.
.
.
Radius is r. Circumference is = 2 pi
r.
Time is 40 s.
Every 40 seconds he comes back to
original position l. So in 140 s he
would cover 3 and half circles.
Hence
Total distance is 2r pi x 3.5 = 7r pi.
Total displacement will be = 2r
since ball will be directly across the
diameter .
.
.
.
.
if u like my answer then mark as brainliast
.
.
.
and follow me for more
.
.
...
#ar
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