titosd 0 Junior Poster in Training

Hello,
I have a question, more than 1 day i tried to solve it but i didn"t, plz help me.
the question is:

We have 1000 containers arranged on a single line 10 km long, and on each container there is number (key) and the weight of the container, We have a crane that can lift up to 50 tons and the speed is 1 km/hour

How much time needs to sort the containers by a crane by using the quick sort algorithm?

Thank you