Question

a particle is moving in a circle of radius 5m. calculate the distance covered and displacement when it completes 3 revolutions. Complete solution .

Answer 1

2pie =circumference
2 ×22/7 × r

Answer 2

hello dear

given :- radius of the circle = 5m

so total distance travelled in 3 revolutions = 2πr × 3

= 2 × 22/7 × 5 × 3

= 660/7m

= 94.28m (approx.)

now, what is displacement?

displacement is the shortest distance between the initial point to the final point.

here, the particle is moving in a circle, so the particle will come back to its same position after 3 revolutions. hence, displacement will be 0 as we know when a body comes back to its starting point.