Question

plzz solve this question properly​

Answer 1

Answer:

State whether true or false.

The angular displacement of an object moving in a circular path of radius r is equal to 90 ∘

when it has completed half a revolution

Sol:

When an object has completed half a revolution moving in a circular path, it has swept an angle of half that of a full circle.

Now a full circle covers an angle of 360 ∘or 2π radians

Hence, the object covers an angular displacement of 180 ∘or π radians

Hope you relate this.

Mark Brainliest.

Answer 2

Answer:

Displacement is 250 meter