Alex2dHers8aLavii Alex2dHers8aLavii

31-05-2016
Physics

contestada

Gaya 7,5 dikerjakan pada masa sebesar 3 kg sehingga kelajuannya berubah dari 65 cm/s menjadi 15 m/s maka waktu yang dibutuhkan adalah

Respuesta :

04-06-2016

F=7,5 N
m = 3kg
F=m.a
7,5=3.a
a=7,5/3
a=2,5 m/s^2

Vo = 65cm/s -> 0,65m/s
Vt = 15m/s
t..?

Vt=Vo+a.t
15 = 0,65 + 2,5.t
14,35=2,5.t
t=5,74 secon

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