Physics , Physics & Physics !

the displacement equation is of the form $d=v_i t + \frac{at^2}{2}$ the displacement equation is $7t+\frac{18t^2}{2}$ , therefore the acceleration is 18m/s $^2$ . Or you could differentiate the displacement equation two times with respect to $t$ . Either way works. The force is given by Newton's second law, $F=ma$ , in this case $F=18 * 3$ =54 Newtons. The pressure is given by the equation $P=\frac{Force}{Area}$ .

Plugging in the values, we get pressure=2 pascals Plugging the values of pressure, force, and area into the answer $5(a+F+P)$ , the answer is 370

$s=9t²+7t$

$a=\frac{d²s}{dt²}$

$a=18m/s²$

$F=ma$ $F=54N$

$P=\frac{F}{A}$ $P=2Pa$

$Answer=5(a+F+P)$ $Answer=5×74$ $Answer=370$