Question

displacement of a particle is given as x=3t2+7t-9 calculate acceleration? ​

Answer 1

Answer:

first we will differentiate x w.r.t. Time and then again differentiate it w.r.t. time and then we will get acceleration

$x = 3t^{2} + 7t - 9$

$\frac{dx}{dt} = 6t + 7$

$\frac{d2x}{ {dx}^{2} } = 6$

so acceleration is 6m/s (or some other unit).