Question

The school is 1 km away from a teacher’s house. A teacher driving to the school has an acceleration of 20 m/s2 . When starting from rest, what would be the distance travelled in 10 seconds? How much more distance does the teacher have to travel to reach the school?​

Answer 1

1)

`x = \frac{at {}^(2) }{2} + vt + x(0)`

`x = \frac{20 * (10) {}^(2) }{2} + 0 + 0 = (2000)/(2) = 1000 \: meters`

2)

0 meters since she has already reached school. Note: 1000 meters = 1 kilometer