cochrancorey32 cochrancorey32
  • 17-08-2018
  • Physics
contestada

if a ball with an original velocity of 0 is dropped from a tall structure and takes 7 Seconds to hit the ground what velocity does the ball have when it reaches the ground

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LammettHash
LammettHash LammettHash
  • 17-08-2018

[tex]a_y=\dfrac{v_y-v_{0y}}t\implies-9.81\,\dfrac{\mathrm m}{\mathrm s^2}=\dfrac{v_y-0}{7\,\mathrm s}\implies v_y=-68.7\,\dfrac{\mathrm m}{\mathrm s}[/tex]

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