Explicacion
8.
T = 30 min ( 60 s / 1 min) = 1800 s
d = 1 m
v = ?
Formula
v = d / t = 1 m / 1800 m = 5.
55 exp - 4 m / s
9.
T = 1 min = 60 s
d = 1 km = 1000 m
v = ?
Formula
v = d / t = 1000 m / 60 s = 16.
66 m / s
v = 16.
66 m / s(1 km / 1000 m)(3600 s / 1 h) = 59.
976 km / h
10.
D = 42 km = 42000 m
t = 2 h y 40 min
t = 2 h (3600s / 1h) = 7200 s
t = 40 min(60 s / 1 min) = 2400 s
t = (7200 + 2400) s = 9600 s
v = d / t = 42000 m / 9600 s = 4.
375 m / s
11
d = 800 m
t = 10 min (60 s / 1 min) = 600 s
v = ?
V = d / t = 800 m / 600 s = 1.
33 m / s
12.
D = 500 km = 500000 m
t = 1 / 4 h(3600 s / 1 h) = 900 s
v = d / t = 500000 m / 900 s = 555.
55 m / s
13.
V₁ = 20 km / h(1000 m / 1 km)(1 h / 3600 s) = 5.
55 m / s (4)
v₂ = 10 m / s (2 )
v₃ = 0.
5 km / h(1000 m / 1 km)(1 h / 3600 s) = 0.
1388 m / s (5 )
v₄ = 500 m / min(1 min / 60 s ) = 8.
33 m / s (3 )
v₅ = 3 km / min(1000 m / 1 km) (1 min / 60 s ) = 50 m / s (1)
14.
D = 2000 m
t = 7 min(60 s / 1 min) = 420 s
v = ?
Formula
v = d / t = 2000 m / 420 s = 4.
76 m / s
14.