Electro259 Electro259

21-09-2018
Physics

contestada

if it takes a tennis ball falls straight down for 4 seconds from the top of a roof, how high above the ground is the roof?

Respuesta :

osprey2015 osprey2015

22-09-2018

high=1/2 a t^2

a about 10 ... 9.81

high=1/2x10x4x4=80.

Answer Link

osprey2015 osprey2015

22-09-2018

high=1/2 a t^2

a about 10 ... 9.81

high=1/2x10x4x4=80.

Answer Link

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