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dedylja [7]
3 years ago
7

What is the time required for an object starting at rest to fall freely 500 meters near earth surface

Physics
2 answers:
Veronika [31]3 years ago
7 0
Without air resistance . . .

           Distance  =  1/2 g T²

               500 m  =  (1/2) (9.8 m/s²) (T²)

               500 m  =  (4.9 m/s²) (T²)

Divide each side by   (4.9 m/s²)  :

                  T²  =  (500 m) / (4.9 m/s²)

                       =     102.04 s²

                   T  =  √ (102.04 s²)

                       =       10.1 seconds       
Gnom [1K]3 years ago
3 0
Using kinematics, approximately 10.1 seconds
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"Net Force = zero" means that if there ARE any forces acting on the object, then they add up to zero, and we call them "balanced" forces.

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