Question

What expressions for a, b, and c should be used?

Answer 1

Answer:

$a=-4.9,b=v,c=0$

Step-by-step explanation:

The given equation is

$h=-4.9t^2+vt$

This is a quadratic equation in $t$

To solve $t$ using the quadratic formula, we substitute

$a=-4.9,b=v,c=0$