Question

The speed of propagation of the action potential (an electrical signal) in a nerve cell depends (inversely) on the diameter of the axon (nerve fiber). If the nerve cell connecting the spinal cord to your feet is 0.97 m long, and the nerve impulse speed is 20.0 m/s, how long does it take for the nerve signal to travel this distance?

Answer 1

same as any other distance = speed * time problem

time = (.97/20) seconds

of course we did not use the diameter bit but perhaps there is a part B ?

Answer 2

0.0485