College Physics (7th Edition)

$7.0\times10^{5}\,N$
Mass $m=2.0\times10^{5}\,kg$ Acceleration $a=3.5\,m/s^{2}$ $F_{net}=ma=2.0\times10^{5}\,kg\times3.5\,m/s^{2}=7.0\times10^{5}\,N$