Question

particle is moving in a circle of diameter 5 M what is its displacement when it completes one and half revolution

Answer 1

After one revolution, displacement will be 0 as it returns to the same point. After one and half revolution, it will be exactly opposite to the point, so the displacement will be equal to the diameter.

Hence displacement will be equal to 5 m.

Hope this helps! :)

Answer 2

Look for a circle the circumference is equal to displacemnt
but as we knw displacement is the shortest path covered so
for complete 1 revolution displacement is = 0 ( bcz intial and final point is same )
so knw we will calculate only displacement for half revolution
i.e disp for 1/2 revolution = 1/2 ×circumfrnce of the circle

= 2piR/2
= pi × R
= 22/7 × 5m
= 15.7m
so the total displacement for one and a half revolution is
= 0 + 15.7
= 15.7m