Question

A car travels 40.0km north in 30minutes, then 80.0km east in 40minutes. What is the cars displacement?

Answer 1

Ok will tell you in an hour

Answer 2

Answer: Net Displacement = 40$\sqrt{5}$

Explanation:

First of all, the time doesnot matter as the distances are already given .

so then the car travels 40km in north and then 80 km in east .

Therefore, it will form a right angle triangle .

So,displacement = the hypotenuse of the right angle triangle.

i.e.

displacement = $\sqrt{40^{2} + 80 ^{2} }$

therefore answer = 40$\sqrt{5}$