Odpowiedź:
zad.1.
a.
m = 5 kg
g = 10 N/kg
F = ?
F = m*g
Fa = 5 kg*10 N/kg = 50 N
b .
m = 25 dag = 0,25 kg
Fb = m*g
Fb = 0,25 kg*10 N/kg = 2,5 N
c.
m = 7g = 0,007 kg
Fc = 0,007 kg*10 N/kg = 0,007 N
d.
m = 3 t =3000 kg
Fd = 3000 kg *10 N/kg = 30000 N = 30 kN
zad.2.
a
Fa = 0,3 N
m = F/g
m = 0,3 N /10 N/kg = 0,03 kg
b.
Fb = 15 N
m = 15 N/10 N/kg = 1,5 kg
Fc = 800 N
m = 800 N/10 N/kg = 80 kg
Fd = 25 kN = 25000 N
m = 25000 N/10 N/kg = 2500 kg = 2,5 t
Wyjaśnienie:
Umiałem tylko 2
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Odpowiedź:
zad.1.
a.
m = 5 kg
g = 10 N/kg
F = ?
F = m*g
Fa = 5 kg*10 N/kg = 50 N
b .
m = 25 dag = 0,25 kg
Fb = m*g
Fb = 0,25 kg*10 N/kg = 2,5 N
c.
m = 7g = 0,007 kg
Fc = 0,007 kg*10 N/kg = 0,007 N
d.
m = 3 t =3000 kg
Fd = 3000 kg *10 N/kg = 30000 N = 30 kN
zad.2.
a
Fa = 0,3 N
F = m*g
m = F/g
m = 0,3 N /10 N/kg = 0,03 kg
b.
Fb = 15 N
m = 15 N/10 N/kg = 1,5 kg
c.
Fc = 800 N
m = 800 N/10 N/kg = 80 kg
d.
Fd = 25 kN = 25000 N
m = 25000 N/10 N/kg = 2500 kg = 2,5 t
Wyjaśnienie:
Umiałem tylko 2
b) cukier (ok. 1kg)
c) Lodówka (ok. 100kg)
d) Samochód osobowy (ok. 1000kg)