help with resultant vertical velocity question please

The stairs on an escalator move upwards at 0.5m/s.
Calculate the resultant vertical velocity of a person:
a) standing still on the escalator (1 mark)
b) walking upwards at 2.0m/s (1 mark)
c) walking downstairs at 1.0m/s (1 mark)

(AS level / first year A level Physics)

What have you got so far? Have you drawn a diagram?
(I’m not the greatest physics expert but the first thing I’d always do in mechanics in A level maths would be to draw a diagram, and it looks like a similar approach might be useful for this type of question )

Have you drawn a diagram?

The stairs on an escalator move upwards at 0.5m/s.
Calculate the resultant vertical velocity of a person:
a) standing still on the escalator (1 mark)
b) walking upwards at 2.0m/s (1 mark)
c) walking downstairs at 1.0m/s (1 mark)

(AS level / first year A level Physics)

I've been trying to draw a diagram but that's where I got stuck - I think it's meant to look like a triangle?

I don’t think the question is looking triangle diagram to find the resultant vertical velocity.

How would draw a vector that represents the vertical velocity of the stairs on an escalator?

How would draw a vector that represents
(i) a person that standing still on the escalator? (This can be a bit tricky)
(ii) a person walking upwards at 2.0 m/s?
(iii) a person walking downstairs at 1.0 m/s?

Add the vectors of the stair and person to find the resultant vertical velocity of a person.

is it just
(i) 0.5
(ii) 0.5 + 2.0 = 2.5
(iii) 0.5 - 1.0 = -0.5

Well done.