Understanding the Physics
* Acceleration due to gravity (g): On Earth, the acceleration due to gravity is approximately 9.8 m/s². This means that for every second an object falls, its velocity increases by 9.8 meters per second.
* Initial velocity (v₀): Since the ball is dropped, its initial velocity is 0 m/s.
Formula
We can use the following formula to find the final velocity (v) after a certain time (t):
v = v₀ + gt
Calculation
* v₀ = 0 m/s
* g = 9.8 m/s²
* t = 2 s
Plugging these values into the formula:
v = 0 + (9.8 m/s²)(2 s)
v = 19.6 m/s
Answer
The velocity of the lead ball after 2 seconds will be approximately 19.6 m/s.
