If a student leaves home and drives to a concert five miles away, and then returns home by taking a route longer by 7 miles, what is the student’s total displacement?

0 miles, because the student is back at the starting point

Not enough information is given.

5 miles, because that's the maximum distance away from the starting point that the student traveled.

12 miles, because the student traveled 12 total miles.

0 miles, because the student is back at the starting point

Explanation:

Displacement is defined as the change in the position of the object during its whole journey

So it is the shortest distance between initial and final position

Also we can say that it is the straight line joining the initial and final position of the object

Here we know that student leave from home towards a concert by a way which is 5 miles away

Now he returns back to home by longer path which is 7 miles

But here we know that initial and final position is same as he reached back to home

So displacement must be ZERO

the device is called “ rocket engine”

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers