Question

Срочно!!!!!!!!!!!!!!!!!!!

Answer 1

1.$x(t)=(- \frac{1}{3}t^3+2t^2+5t ) v(t)=x'(t)=-t^2+4t+5 v(2)=13-4=9$
2.$x(t)=t^5+3t^2-1 a(t)=x''(t)=(5t^4=6t)'=20t^3+6 a(2)=160+6=166$