Question

You spot a friend walking on a moving walkway in an airport. You are not on the walkway and you want to keep up with her.

At what speed do you need to walk?

A. the speed of the walkway multiplied by the speed at which she is walking

B. the speed of the walkway minus the speed at which she is walking

C. the speed of the walkway plus the speed at which she is walking

Answer 1

The answer is C. the speed of the walkway plus the speed at which she is walking

Answer 2

I think the answer is A.

A. the speed of the walkway multiplied by the speed at which she is walking

The speed she is walking accelerates her speed by the base speed of the walkway.