Question

a body is moving on a square track of side 1m it completes one revolution in 40seconds calculate its displacement in 4minutes​

Answer 1

time taken to complete one revolution=40 sec

displacement after one revolution=0

time taken to cover 4 sides=40 sec

therefore time taken to cover one side=40/4=10 sec

4 min=4*60

=240 sec

rounds completed=240/40

=6

since after 4min the body will complete 6 rounds therefore net displacement is 0 as it comes back to the original position.

Therefore your answer is 0.

Answer 2

Answer: displacement is zero.

Explanation:To complete one revolution time taken =40sec

given, time =4min =4×60sec=240sec

So, in this time number of revolution = 240/40=6 (complete revolution)

So, it comes back to the original position. Hence displacement is 0 ( zero)