The distance xm travelled by a particle in time t seconds is described by the equation x = 10 + 12t2, Find the average speed of the particle between the tim...

The distance xm travelled by a particle in time t seconds is described by the equation x = 10 + 12t2, Find the average speed of the particle between the time interval t = 2s and t = 5s

Answer Details

speed = $\frac{dx}{dt}$

$\frac{dx}{dt}$ = 10 + 12t2

$\frac{dx}{dt}$ = 24t

$\frac{dx}{dt}$ =24 x 3

$\frac{dx}{dt}$ = 72 ms-1