A rocket is headed away from Earth at a speed of $0\mathrm{.}80$c$.$ The

rocket fires a small payload at a speed of $0\mathrm{.}70$c $($relative to the

rocket$)$ aimed away from Earth. How fast is the payload

moving relative to Earth?

A$)1\mathrm{.}50$c

B$)$ a little less than $1\mathrm{.}50$c

C$)$ a little over c

D$)$ a little under c

E$)0\mathrm{.}75$c$.$

L$1$