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An athlete completes one round of a circular track of diameter

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Class 9

NCERT

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An athlete completes one round of a circular track of diameter

200 m

40 s

. What will be the distance covered and the displacement at the end of

2

minutes

20 s

Joseph jogs from one end A to the other end B of a straight

300 m

road in 2 minutes 30 seconds and then turns around and jogs

100 m

back to point C in another 1 minute. What are Joseph's average speeds and velocities in jogging (a) from A to B and (b) from A to C?

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Solving time: 3 mins

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

Views: 6,903 students

Updated on: Jan 31, 2024

Book:

Science (NCERT)

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An athlete completes one round of a circular track of diameter

200 m

40 s

. What will be the distance covered and the displacement at the end of

2

minutes

20 s

9 mins ago

Discuss this question LIVE

9 mins ago

Text solutionVerified

Given : Diameter of the circular track

D = 2 R = 200

Time

t = 2

utes

20

= 140

As the athlete completes one round in 40 seconds, thus he will be at point B after 140 seconds by covering three and half rounds.

∴

Displacement of the athlete

s^{'} = 2 R = 200

Distance covered

d = 3.5 \times (2 π R)

d = 3.5 \times \frac{22}{7} \times 200 = 2200

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Practice more questions from Science (NCERT)

An athlete completes one round of a circular track of diameter

200 m

40 s

. What will be the distance covered and the displacement at the end of

2

minutes

20 s

Joseph jogs from one end A to the other end B of a straight

300 m

road in 2 minutes 30 seconds and then turns around and jogs

100 m

back to point C in another 1 minute. What are Joseph's average speeds and velocities in jogging (a) from A to B and (b) from A to C?

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Question Text	An athlete completes one round of a circular track of diameter $200 m$ in $40 s$ . What will be the distance covered and the displacement at the end of $2$ minutes $20 s$ ?
Updated On	Jan 31, 2024
Topic	Motion
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 29
Upvotes	2896
Avg. Video Duration	6 min

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

Text solutionVerified

Filo tutor solutions (29)

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

Text solutionVerified

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