解:(1)F=G=Mg=600X9.8=5880N
P=F/S=G/S=5880/0.12=49000=4.9X10^4Pa
(2)汽车的飞行速度:V=200km/h=200X1000/3600=200/3.6m/h
P=W/t=FS/t=FV
汽车克服阻力做功:阻力F=P/V=7500/(200/3.6)=1350N
汽车匀速飞行:牵引力F=阻力F=1350N
所以汽车受到的牵引力是1350N 。
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