If u could answer it or explain how to do it I’ll appreciate it v much

D.) 0 m

Explanation:

Think of it like a graph. The helicopter starts at 0 m.

From 0 m, it moves 2 m up. That means it's displacement is 2 m up. But then, it moves 2 m back down. That means it's back to 0 m, where it originally started.

So, this is how you solve it.

Think of going up as adding, and going down as subtracting.

You start from 0, and then add 2 because the helicopter goes up 2 m.Then you subtract 2 from it's previous displacement (which was +2) because the helicopter goes down 2 m.So your equation would be 0+2=2 (remember, start from 0 then add 2 because it goes up), 2-2=0 (then you subtract 2 because it goes down). That means your answer is 0.

The displacement of the helicopter is 0 m.

Idon't hope someone you

Green is technically every other color but green but the other wavelengths of the other colors get absorbed by the object and the wavelength of the color green gets reflected