[填空题]
The CM of an empty 1050-kg jwdz-*a y )mc*car is 2.50 advr7i8h x n*) +5+urhc;sm jcobm 0-pm behind the front of the car. How far from the front of the car will the CM be when twoc-p o7x r)0;hnmc8i+5d*s bva jumr+h people sit in the front seat 2.80 m from the front of the car, and three people sit in the back seat 3.90 m from the front? Assume that each person has a mass of 70.0 kg. m