1) v = 10+.3t;
v0 = 10 м/c ; a =03<span> м/с^2</span> ;
v = 20t;
v0 = 0; a = 20<span> м/с^2</span>;
2) s = 25 - 0.4t^2; v0 = 0; a = -0.8 <span> м/с^2</span>
s =3t^2; v0= 0; a = 6 м/с^2.
M1=130000 кг
m2=1170000кг
v1=2 м/c
<span>m1V1=(m1+m2)V2</span>V2=0.2м/сответ:0.2