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05-11-2016
Physics

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a 2 meter tall astronaut standing on mars drops her glasses from her nose. how long will the astronaut have before he hits the ground?

Respuesta :

DarkUnix DarkUnix

08-11-2016

Here,
Height (S) = 2m
Gravity on mars (g) = 3.7m/s^2
Initial velocity (u) = 0 m/s^2
By the one of the formula of the motion,
S = ut + 1/2at^2
2 = 0 * t + 1/2*3.7*t^2
2 = 1.85t^2
t^2 = 2/1.85 = 1.081
t =1.03s
So, it will take 1.03s long..

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