Atps de Fisica 1
Por: Deborah Martins • 13/6/2015 • Trabalho acadêmico • 1.798 Palavras (8 Páginas) • 182 Visualizações
Etapa 1:
Passo 1: 100 km = 3,048 pés, logo 300 km = 9,144 pés
Passo 2: 1 km = 0.539957 mn, logo 100 km = 53,99 mn
Passo 3: Leia o texto
Passo 4: Vm1 = ∆S1/∆T1 Vm2 = ∆S2/∆T2
300 = 50/ ∆T1 400 = 50/ ∆T2
∆T1 = 50/300 ∆T2 = 50/400
∆T1 = 0,1666... ∆T2 = 0,125
∆T1 ≅ 0,17 h ∆T2 ≅ 0,13 h
VmT = ∆S1 + ∆S2/∆T1 + ∆T2
VmT = 50 + 50/ 0,17 + 0,13
VmT = 100/0,3
VmT = 333,33 km/h
Etapa 2:
Passo 1: Vm1 = ∆S/∆T1 Vm2 = ∆S/∆T2
400 = 100/∆T1 200 = 100/∆T2
∆T1 = 100/400 ∆T2 = 100/200
∆T1 = 0,25 h ∆T2 = 0,5 h
Td = ∆T2 - ∆T1
Td = 0,5 – 0,25
Td = 0,25 h
Passo 2: V = ∆S1/∆T1 V = ∆S2/∆T2 V = ∆S3/∆T3
300000 = 338/∆T1 300000 = 100/∆T2 300000 = 3000/∆T3
∆T1 = 338/300000 ∆T2 = 100/300000 ∆T3 = 3000/300000
∆T1 = 0,0011 s ∆T2 = 0,00033 s ∆T3 = 0,01 s
Passo 3:
1- Vm = 9x1225
Vm = 11025 km/h
Vm = V0 + VF/2
11025 = 0 + VF/2
22050 = VF + 0
VF = 22050 km/h
2- V = 25x1225 V² = V0² + 2.a.∆s
V = 30625 km/h 8506,94² = 0² + 2.a.288
V = 30625/3,6 8506,94/a = √576
V = 8506,94 m/s a = 354,45 m/s²
a ≅ 354,46 m/s²
3- V = Vo + a.t
8506,94 = 0 + 354,46.t
t = 8506,94/354,46
t = 23,99 s
t ≅ 24 s
Etapa 3:
Passo 2:
2- V² = V0² + 2.a.∆s 1- V = Vo + a.t
V² = 0² + 2.9,8.8 2,52 = 0 + 9,8.t
V² = 156,8 t = 12,52/9,8
V = √156,8 t ≅ 1,28 s
V ≅ 12,52
3- V = 9x 1225 V² = V0² + 2.a.∆s
V = 11025 km/h 0² = 3062,5² + 2.(-9,8).∆s
V = 11025/3,6 19,6∆s = 3062,5²
V = 3062,5 ∆s = 9378906,25/19,6
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