a$)$

How fast $($in m$/$s$)$ must a $4900$ kg elephant move to have the same kinetic energy as a $69\mathrm{.}0$ kg sprinter running at $10\mathrm{.}4$ m$/$s$?$

$($No Response$)$ m$/$s

$($b$)$

Discuss how the larger energies needed for the movement of larger animals would relate to metabolic rates.

$($No Response$)$