Final answer:
To find the final velocity of the apple when it hit the ground, we use the equation v = u + at, plugging in the initial velocity (u) of 0 m/s, acceleration (a) of 9.8 m/s² due to gravity, and time (t) of 1.85 seconds to calculate a final velocity (v) of 18.13 m/s.
Step-by-step explanation:
To calculate how fast the apple was going when it hit the ground, we can use the kinematic equation for velocity under constant acceleration:
v = u + at
Where:
- v is the final velocity
- u is the initial velocity (which is 0 m/s since the apple fell from rest)
- a is the acceleration due to gravity (which is 9.8 m/s²)
- t is the time taken to fall (which is 1.85 seconds)
Plugging in the values:
v = 0 m/s + (9.8 m/s² * 1.85 s)
v = 18.13 m/s
So, the apple was going 18.13 m/s when it hit the ground.