Question

a body covers a circular path of radius 10m in 20s.Calculate the distance and displacement of the body at the end of 70s
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Answer 1

Answer:

Heres your answer:

Explanation:

Displacement is 2R. because after 70 s body covers 7πR which is just at a distance of πR from the starting point. that means body will be exactly on the opposite side of the circle i.e. to the other end of the diameter. Hence displacement will be 2R.

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Answer 2

Answer:

displacement=2R=2×10=20m

distance=2πR×3+πR=219.8m

Explanation:

as displacement is defined as

shortest distance betwee final position & initial position

& distance is defined as total distance covered so in 70s it will cover 7/2 of circle so circumference of circle multiply 3 and one half Circumfrence will b distance

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