Question

The leaning tower of Pisa is about 56 meters tall. A ball released from the top takes 3.4 seconds to reach the ground. The final velocity of the ball before it hits the ground is 33 meters/second. Assuming that the ball experienced a constant acceleration throughout this descent, calculate the magnitude of the acceleration.

Answer 1

If it is indeed released with no initial velocity and air resistance is negligible, you can use v(t) formula:
\[v(t)=v _{i}+a \times t\]
\[33 = 0 + 3.4a\]
\[a=\frac{ 33 }{ 3.4 } = 9.705 m/s^2\]