Imagine that you're loading a pickup truck with bags of groceries. you notice that the smaller the weight you attempt to lift, the quicker you can lift it. however, you also notice that there is a limit to how quickly you can lift even very small weights, and that above a certain weight, you can no longer lift the weight at all. the detailed relationship between the contraction velocity of a muscle (the speed with which you can lift something) and the weight you are attempting to lift, is known as hill’s law.
based on this description, which of the following graphs of velocity vs. force is a possible representation of hill's law?
a. a
b. b
c. c
d. d
e. e