The height of the object as a function of time is given by the expression:
[tex]h(t)=-16t^2+1160[/tex]The height of the object at t = 1s is:
[tex]\begin{gathered} h(1)=-16(1)^2+1160=-16+1160 \\ \\ \therefore h(1)=1144\text{ feet} \end{gathered}[/tex]