Understanding Free Fall
* Acceleration due to gravity: In free fall, objects accelerate downward due to gravity at approximately 9.8 m/s². This means their velocity increases by 9.8 m/s every second.
Calculations
1. Initial Velocity: We assume the object starts from rest, so its initial velocity (v₀) is 0 m/s.
2. Time: The object falls for 0.10 seconds (t = 0.10 s).
3. Final Velocity: We can use the following equation to find the final velocity (v):
v = v₀ + at
v = 0 + (9.8 m/s²) * (0.10 s)
v = 0.98 m/s
Answer
The correct answer is A) 0.98 m downward.
Important Note: The negative sign isn't strictly necessary in this case because we've already specified "downward." However, if you're using a coordinate system where downward is negative, the velocity would be -0.98 m/s.