A V brake lever pulls more wire for a given amount of hand motion, the effort will be a bit higher .
The fulcrum of the simple lever in classical mechanics terms is further from the work being done with a Linear pull lever,
because the leverage at the brake caliper on the wheel end of the cable is High leverage.
so needs to have more cable pulled , than a lower leverage arm , like a cantilever.
V brake and a low profile cantilever is a type 2 lever, old style L shaped cantilever brake is a type 1 lever.
the above page describes the difference.