When Apollo $15$ astronaut David Scott dropped a hammer and a feather on the moon to demonstrate that in

a vacuum all bodies fall with the same $($constant$)$ acceleration, he dropped them from about $1\mathrm{.}2$ meters

above the lunar surface. The television footage of the event shows the hammer and the feather falling more

slowly than on Earth, where, in a vacuum, they would have taken only half a second to fall the $1\mathrm{.}2$ meters.

How long did it take the hammer and feather to fall $1\mathrm{.}2$ meters on the moon, if the moon$$s gravitational

acceleration is$80$

$13$ that of earth?