Acceleration at constant speed

Q. If the velocity of a body related to displacement $x$ is given by $v=\sqrt{5000+24x}\text{m/s},$ then the acceleration of the body is _____${\text{m/s}}^2.$

Q. A particle is moving with constant acceleration $a$. The following graph shows $v^2$ versus $x$(displacement) plot. The acceleration of the particle is
${\text{ms}}^{-1}$