ATPS De Física

ETAPA 3

Passo 1

V0 G = 9,8 m/s2

8m

Passo 2

1) V= Vo + at

12,52 = 0 + (-9,8)T

T = 12,52/9,8

T = -1,277

T = 1,278 s

2) V² = Vo² + 2aΔx

V² = 0 + 2. 9,8. 8

V² = 156,8

V² = 12,55 m/s

Passo 3

V = V0 + at

0 = 11025 – 9,8t

T = 11025/9,8

T = 1125 h

V² = Vo² + 2aΔx

0 = (11025)² - 2. (9,8). Δx

0 = 121550652 – 19,600. Δx

Δx = 121550652/19,600

Δx = 62001562,5 Km

ETAPA 4

Passo 2

Vo= 400km/h 400:3,6 = 111,111m/s

1Pé =0,3048 m

1000 = 304,8 m

Y = Yo + VoYT + a/2 .T2

304,8 = 0 + 0 + 4,9.T2

T2 = 304,8

4,9

T2 = 62,20

T = √(2&62,20)

T = 7,886 s

X = Xo + Vo.t

X = 0 + 111,111 . 7,886

X = 876,327 m

Passo 3

V = Vo + at

V = 0 +9,8 . 7,886

V = 77,224 m/s

2 – Resultante : Vo + V

Vr = 111,111 + 77,224

Vr = 188,355 m/s