Question

The height of a door knob above the floor is approximately?

yes this is an actual question from my physics review. a step by step on how the answer is found would be helpful for full understanding. thank you.

Answer 1

1m

Step-by-step explanation:

I hope it’s correct

Answer 2

there is a standard (you would not believe) that knobs are on the level of 1m

i would say that in order to apply less force to open a door you need to position knob in the middle of the door.

door itself would be probably about 2m (average person is 1.8m)

so it's half of 2m -> 1m