KennedyGrace5576 KennedyGrace5576
  • 23-10-2020
  • Physics
contestada

A baseball is dropped from the top of the Eiffel tower. What is the velocity of the ball after it has dropped 256 ft

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olayemiolakunle65
olayemiolakunle65 olayemiolakunle65
  • 25-10-2020

Answer:

Velocity = 39.11 m/s

Explanation:

Applying the third equation of motion:

[tex]V^{2}[/tex] = [tex]U^{2}[/tex] + 2gh

where V is the final velocity of the baseball, U is its initial velocity, g is the force of gravity and h is the height.

Thus, U = 0, g = 9.8 m/[tex]s^{2}[/tex] and h = 256 ft

But, 1 ft = 0.3048 m

So that;

h = 256 feet = 78.0288 meters

[tex]V^{2}[/tex] = 2 x 9.8 x 78.0288

   = [tex]\sqrt{1529.37}[/tex]

V = 39.11 m/s

The velocity of the baseball is 39.11 m/s.

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