i got the first part of this quesion, please show me how to do the second part
A truck driver travels 8 km ease, and then he turns around and travels 3 km west. then he turns again and travels 12 km east.
a. what distance has the driver travele
that would be 23 km. just add
b. what is his total displacement
the anser is 17 but displacement is initial position minus final position. that is not 17
He goes 12 + 8 - 3 = 17 east
How did you get some other answer?
To calculate the truck driver's total displacement, you need to consider both the distance and the direction of each segment of the journey. Displacement, unlike distance, takes into account the final position relative to the initial position.
In this case, let's assign the initial position as point A and the final position as point B.
The first segment of the journey is 8 km east from point A, which means the truck driver's position would be 8 km east from point A.
The second segment is 3 km west, which means the truck driver moves 3 km in the opposite direction. So, the truck driver's position would be 5 km east from point A.
Finally, the third segment is 12 km east, which brings the truck driver's position to 17 km east from point A.
To calculate displacement, subtract the final position from the initial position:
Displacement = Final Position - Initial Position
Displacement = 17 km east - 0 km (initial position)
Therefore, the truck driver's total displacement is 17 km east.