If you drop a penny from rest down a well what will its velocity be at $4$ seconds?

a$.-4$ m$/$s

b$.-80$ m$/$s

c$.-20$ m$/$s

d$.-30$ m$/$s

e$.-40$ m$/$s

$20.$ If you drop a penny from rest down a well and what will be the acceleration at $4$ seconds?

a$.-4$ m$/$s$2$

b$.+10$ m$/$s$2$

c$.-5$ m$/$s$2$

d$.-30$ m$/$s$2$

e$.-10$ m$/$s$2$