Sophee left her house on her bike and traveled 3 kilometers north, 5 kilometers east, 3 meters south, then 5 meters west arriving home in time for dinner. what is her distance and displacement?

Distance covered = 16 kilometers

Displacement = 0 kilometers

Explanation:

Distance is defined as the total path length covered and it cannot be zero for a moving object.

Displacement is defined as the distance between the initial and final positions and it may or may not be zero for a moving object.

Here Sophee returns to her house and thus her displacement is zero.

She walks 3 kilometers north , 5 kilometers east , 3 kilometers south and then 5 kilometers west .

So the total distance covered = 3 + 5 + 3 + 5 =16 kilometers.

So the distance travelled by her is 16 kilometers and the displacement is 0 kilometers.

area of focus

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.