Question

a car moved 20 km east and 70 km west. What is the distance?

Answer 1

Answer:

90 km

Explanation:

because car will travel 20km + 70 km so she travel 90 km

Answer 2

Answer:

The distance traveled by car is 90 km.

Explanation:

Distance is measured as the total length traveled by a body. It is independent of the initial and final positions of the body. So, when calculating the distance traveled by car we need to sum up the length it covered both in the east and west directions. Hence we get the distance traveled by car as :

20 km + 70 km = 90 km

SI unit of distance is meter (m). Distance is a scalar quantity.