Respuesta :

AL2006
The acceleration of gravity on Earth is 9.8 m/s² downward.
This means that gravity adds 9.8 m/s downward to the speed
of a freely falling object every second.

So after 25 sec, it's falling (25 x 9.8m/s) = 245 m/s faster than
it was falling at the beginning of the 25 seconds.

If it dropped from rest (no speed), then its velocity
after 25 seconds is 245 m/s downward. 
vijayhalder031

The velocity is 245m/s .

Velocity :

  • The rate at which an object changes its position is known as velocity.
  • The S.I unit of Velocity is m/s

Gravitational  acceleration :

  • Gravitational acceleration is the acceleration of an object in free fall within a vacuum.
  • The magnitude of acceleration due to gravity is 9.8m/s^2.

How to Solve the Problem?

  • An object falls freely for 25 seconds (given)
  • We need  to find the velocity after the 25 seconds

The velocity of object after 25 seconds

= 25*g

Where g is gravitational acceleration

=25*9.8

= 245

Therefore,

velocity after 25 seconds is 245m/s

Learn more about Gravitational acceleration here

https://brainly.com/question/88039

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