Nerve impulses travel at different speeds, depending on the type of fiber through which they move. The impulses
for touch travel at 76.2 m/s, while those registering pain move at
0.610 m/s. If a person stubs his toe, find (a) the time for each type
of impulse to reach his brain, and (b) the time delay between the
pain and touch impulses. Assume that his brain is 1.85 m from his
toe and that the impulses travel directly from toe to brain.