Answer :

Answer:

  • 4.08 sec

Explanation:

To find the time it takes for the object to reach a velocity of 40 m/s, we can use the equation of motion:

  • v = u + at

Where:

  • v = final velocity (40 m/s)
  • u = initial velocity (0 m/s, as the object is dropped from rest)
  • a = acceleration (in this case, acceleration due to gravity, which is approximately 9.8 m/s^2)
  • t = time

Rearranging the equation, we have:

  • t = (v - u) / a
  • t = (40 - 0) / 9.8
  • t ≈ 4.08 seconds

Therefore, it will take approximately 4.08 seconds for the object to have a velocity of 40 m/s.

- Q.E. :))

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