Answer:
Step-by-step explanation:
For example, we'll use this quadratic equation.
To understand how to plug it into the formula we need to know what each term represents.
So the equation above would be put into the formula like this.
Then we would solve
Now, the equation will branch off into one that solves when addition and one when subtraction.
So x={-3, -2} (-3 and -2)
The answer is:
The correct option is the option D
To calculate the acceleration, we need to use the following formula that involves the given information (initial speed, final speed, and time).
We need to use the following free fall equation:
Where:
is the final speed.
is the initial speed.
g is the acceleration due to gravity.
t is the time.
We are given the following information:
Then, using the formula to isolate the acceleration, we have:
Now, substituting we have:
Therefore, since we are looking for a magnitude, we have that the obtained value will be positive, so:
Hence, the correct option is the option D
Have a nice day!