A man walks 40m north then 30 m east and then 40 n south. Find the displacement from the starting point?
30m
To find the displacement from the starting point, we need to determine the final position of the man after he walks north, east, and south.
Let's first visualize the movements on a coordinate grid:
Starting point: (0, 0)
After walking 40m north: (0, 40)
After walking 30m east from the previous position: (30, 40)
Finally, after walking 40m south from the previous position: (30, 0)
To find the displacement, we need to determine the difference between the final position and the starting point. Since the starting point is at (0, 0), the final position is (30, 0).
The displacement is then calculated as the difference between the final x-coordinate and the starting x-coordinate:
Displacement = Final x-coordinate - Starting x-coordinate
= 30 - 0
= 30
Therefore, the displacement from the starting point is 30 meters to the east.