Suppose a boy walks a displace of 3km east wards yo à point and then walks another 6km west wards what is his displacement from his starting point

In my head, 3km West

Disp. = 3 + (-6) = -3km = 3km West.

To find the boy's displacement from his starting point, we need to consider both the distance he traveled and the direction he walked.

First, let's calculate the net distance traveled by the boy. He walked 3 km eastwards and then 6 km westwards. The distances in opposite directions cancel each other out to some extent.

Net distance = Distance traveled eastwards - Distance traveled westwards
Net distance = 3 km - 6 km
Net distance = -3 km

The negative sign in the net distance indicates that the boy ended up 3 km in the opposite direction (westwards) from his starting point.

Now, let's determine the displacement. Displacement is the shortest straight-line distance from the starting point to the ending point, taking into account both the distance and the direction.

In this case, the boy's displacement would be 3 km towards the west. The negative sign in the net distance indicates this direction.

So, the boy's displacement from his starting point is 3 km towards the west.