A mass of 5.25-kg was dropped from a height of 31 m. How much time does it take for the mass to reach the ground?
the mass of the object does not matter, that was the point of what Galelio did at Pisa.
h=1/2 g t^2
solve for t
To calculate the time it takes for an object to fall from a certain height, we can use the equation for time in free fall:
t = √(2h/g)
Where:
t is the time in seconds,
h is the height in meters, and
g is the acceleration due to gravity, which is approximately 9.8 m/s².
Plugging in the values given:
t = √(2 * 31 m / 9.8 m/s²)
t = √(62 m / 9.8 m/s²)
t = √(6.3265 s²)
t ≈ 2.51 s
Therefore, it takes approximately 2.51 seconds for the 5.25 kg mass to reach the ground when dropped from a height of 31 meters.