Question

an object travels in a circular orbit. If the speed of the object is halved, it's centripetal acceleration will be...

Answer 1

We know that

Centripetal acceleration

$a_c=\frac{v^2}{r}$

$v'=\frac{v}{2}$

New centripetal acceleration

$a_c'=\frac{v'^2}{r}$

$a'_c=\frac{v^2}{4r}$

$a'_c=\frac{a_c}{4}$