[UncleBob]

not a very well worded set of questions IMO, but question one would be "neither", since with properly adjusted brakes, both types would apply immediately.

The second question is kind of an odd one. There isn't hardly any modern vehicles without power assist, and all the older ones that didn't have it was drum brakes, but I don't see how that necessarily means that drums require less effort.

My 12 pistons worth of front brakes on my bike can do a stoppy with just my pinky finger, with no power assist. Totally different application here, but the point being, the design of the entire system is the major defining point here.

So to answer what I think is the "correct" answer, I'd pick "both"