Question

If a vector that is 1 cm long represents a velocity of 10 km/h, what velocity does a vectory 2 cm long drawn to the same scale represent?

Answer 1

You have to be kidding.

If you are having difficulty with this, then Physics will be very anguishing for you. What you are asking is normally a seventh grade mapping skill.

Use proportions:
1cm/10= 2cm/x

Answer 2

10 km/h x 2 cm/1 cm=??

Answer 3

I am in 8th grade. I'm taking advanced classes.