## Essential University Physics: Volume 1 (3rd Edition)

$1.36\times 10^{14} \ N$
We first find the acceleration: $a =\frac{\Delta v}{t} =\frac{2.592\times 10^{10} \ m/s}{120 \ s}=2.16\times10^8$ We now find force using Newton's second law: $F=ma=2.16\times10^8\times(630,000)=1.36\times 10^{14} \ N$