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A pebble rolls off the roof of science hall and falls vertically. just before it reaches the ground, the pebble's speed is 17 m/s. neglect air resistance and determine the height of science hall.

Respuesta :

Yna9141
The height of the science hall can be related to final velocity through the equation,

      d = (Vf² - Vi²) / 2a

where d is the distance or height, Vf is the final velocity, Vi is the initial velocity and a is the acceleration due to gravity. Substituting the known values,

  d = ((17 m/s)² - (0 m/s)²) / 2(9.8 m/s²)

Simplifying,
  
   d = 14.74 m

ANSWER: 14.74 m

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