Question

Qual a distância percorrida no intervalo 1s a 10s de S=-20-t+t2

Answer 1

s=-20-t+t^2

s(1)=-20-1+1

s(1)=-20m

s(10)=-20-10+(10)^2

s(10)=-30+100

s(10)=70m


s(10)-s(1)=70-(-20)

s(10)-s(1)=70+20

s(10)-s(1)=90metros


espero ter ajudado!

boa noite!!