sania40 sania40
  • 14-12-2018
  • Physics
contestada

Assuming no friction form air, how far will a dropped rock fall in 10 seconds

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Histrionicus
Histrionicus Histrionicus
  • 21-12-2018

Given that

time (t) = 10 s ,

         (S) = ?

We know that  S = ut+ 1/2 a.t²  m

                         since free fall and no air friction,

                               a = g = 9.81 m/s² ; initial velocity u= 0

                         S = 0 + [1/2 × 9.81 ×10²]

                          S = 490.5 m

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