Understanding the Physics
* Acceleration due to gravity (g): The Earth's gravity pulls objects downwards at a constant acceleration of approximately 9.8 m/s². This means the speed increases by 9.8 meters per second every second.
* Initial velocity (v₀): The shoe is dropped, meaning it starts from rest, so its initial velocity is 0 m/s.
* Time (t): The shoe falls for 2 seconds.
Formula
We can use the following formula to find the final velocity (v) of the shoe:
v = v₀ + gt
Calculation
1. Plug in the values:
v = 0 m/s + (9.8 m/s²) * 2 s
2. Calculate:
v = 19.6 m/s
Answer:
The shoe's speed after falling for two seconds is 19.6 m/s.
