Question

if a spacecraft is descending at a rate of 13.81 per minute. what its change in height after 5 1/2 min.

Answer 1

$\begin{gathered} \text{Spacecraft is desecnding 13.81 f}eet\text{ in a minute} \\ So\text{, it in 5}\frac{1}{2}\text{ minute=}\frac{11}{2}\text{ minute} \\ \Rightarrow13.81\times\frac{11}{2}=75.955\text{ ft} \end{gathered}$