ayuda tarea de fisica 110 puntos porfa
Adjuntos:
Respuestas a la pregunta
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3) Vo = 20 m/s
Vf = x
a = 1.8 m/s2
t = 10s
Vf = Vo + at D = Vo t +
Vf = 20 + 10 x 1.8 D = 20.10 + 1.8 x 100 / 2
Vf = 20 + 18 D = 200 + 180 / 2
Vf = 38 m/s D = 200 + 90
D = 290 m => 2.9 x
5)
Vo = 0
Vf = x
a = 3 m/s2
t = 24s
Vf = Vo + at D = Vo +
Vf = 0 + 3 . 24 D = 0 + 3 . 576 / 2
Vf = 72 m/s D = 1728 / 2
D = 864m
6)
Vo = 0
Vf = x
a = y m/s2
t = 10 s
D = 350m
b) D =
350 = ( Vf + 0 /2 ) t
350 = Vf /2 . 10
700 = Vf . 10
70 m/s = Vf
a) Vf = Vo + at
70 = 0 + a. 10
7 m/s2= a
7)
Vo = 15 m/s
Vf = 25 m/s
a = x m/s2
t = 4 s
a) Vf = Vo + at
25 = 15 + 4a
10 = 4a
10/4 = a => 5/2 => 2.5 m/s2
b) D = Vo +
D = 15 + 2.5 x 16 / 2
D = 15 + 40 / 2
D = 15 + 20
D = 35 m
8)
Vo = 216 km/h => 216 x 5/18 = 60 m/s
Vf = x m/s
a = 10 m/s2
t = s
Vf = Vo - a t
0 = 60 - 10t
10t = 60
t = 6s
Ahora : D = ( ) t
D = ( 0 + 60 / 2 ) 6
D = 30 . 6
D = 180 m => 1.8 x
Vf = x
a = 1.8 m/s2
t = 10s
Vf = Vo + at D = Vo t +
Vf = 20 + 10 x 1.8 D = 20.10 + 1.8 x 100 / 2
Vf = 20 + 18 D = 200 + 180 / 2
Vf = 38 m/s D = 200 + 90
D = 290 m => 2.9 x
5)
Vo = 0
Vf = x
a = 3 m/s2
t = 24s
Vf = Vo + at D = Vo +
Vf = 0 + 3 . 24 D = 0 + 3 . 576 / 2
Vf = 72 m/s D = 1728 / 2
D = 864m
6)
Vo = 0
Vf = x
a = y m/s2
t = 10 s
D = 350m
b) D =
350 = ( Vf + 0 /2 ) t
350 = Vf /2 . 10
700 = Vf . 10
70 m/s = Vf
a) Vf = Vo + at
70 = 0 + a. 10
7 m/s2= a
7)
Vo = 15 m/s
Vf = 25 m/s
a = x m/s2
t = 4 s
a) Vf = Vo + at
25 = 15 + 4a
10 = 4a
10/4 = a => 5/2 => 2.5 m/s2
b) D = Vo +
D = 15 + 2.5 x 16 / 2
D = 15 + 40 / 2
D = 15 + 20
D = 35 m
8)
Vo = 216 km/h => 216 x 5/18 = 60 m/s
Vf = x m/s
a = 10 m/s2
t = s
Vf = Vo - a t
0 = 60 - 10t
10t = 60
t = 6s
Ahora : D = ( ) t
D = ( 0 + 60 / 2 ) 6
D = 30 . 6
D = 180 m => 1.8 x
adolfoangel8814:
muchas gracias me salvastes
Contestado por
0
Respuesta:
Vo = 15 m/s
Vf = 25 m/s
a = x m/s2
Vf = Vo + at
25 = 15 + 4a
10 = 4a
10/4 = a => 5/2 => 2.5 m/s2
D = 35 m
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