Question

A boy completes one round of the circle of radius R 20s . the ratio of magnitude of displacement to distance after 10s is​

Answer 1

Answer:

2r

Explanation:

A boy complete one round of a cirlcle radius r in 20sec.

In 20 second he complete one round.

So,in 10 seconds=

So,

In 10 second he will complete half of the circle.

Therefore,the displacement will be 2r.

Answer 2

Answer:

A boy complete one round of a cirlcle radius r in 20sec.

A boy complete one round of a cirlcle radius r in 20sec.In 20 second he complete one round.

A boy complete one round of a cirlcle radius r in 20sec.In 20 second he complete one round.So,in 10 seconds=

A boy complete one round of a cirlcle radius r in 20sec.In 20 second he complete one round.So,in 10 seconds=So,

A boy complete one round of a cirlcle radius r in 20sec.In 20 second he complete one round.So,in 10 seconds=So,In 10 second he will complete half of the circle.

A boy complete one round of a cirlcle radius r in 20sec.In 20 second he complete one round.So,in 10 seconds=So,In 10 second he will complete half of the circle.Therefore,the displacement will be 2r.

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