Question

i need to figure how to do it and what equation to use for it

Answer 1

ANSWER:

5.6 sec

STEP-BY-STEP EXPLANATION:

Looking for:

Time

Given:

Speed = 55 m/s

Acceleration due to gravity = 9.8 m/s

Relationship:

$a=\frac{\Delta v}{\Delta t}$

We solve for t:

$\begin{gathered} \Delta t=\frac{\Delta v}{a} \\ \text{replacing} \\ \Delta t=\frac{55}{9.8} \\ t=5.6\text{ sec} \end{gathered}$

Solution:

5.6 sec