Answer:
Option D.
Explanation:
Data:
- Height (h) = 9 m
- Gravity (g) = 9.8 m/s²
- Velocity Final (Vf) = ?
Use formula:
Replace:
Multiply gravity with height:
Multiply:
Solve the square root:
How fast is the ball going?
The speed is going at a speed of <u>13.3 meters per second.</u>
Because acceleration depends not only on the change in velocity.
It also depends on the time during which the change occurs.
The formula is
Acceleration = (change in velocity) divided by (time for the change) .
Maybe Sla changed his velocity in 3 seconds, but Hazel
took all morning to change hers. In that case, even though
the amounts of change were equal, the times were different,
so the quotients of (change/time) were different.
Up ward direction...
Positive direction
7.5m/s
cuz the ball moves at a bad position making it so sideways and back to the front herr yerddd
