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a = F/m
gdzie:
a - przyspieszenie [m/s²]
F - siła działajaca na ciało [N]
m - masa ciała [kg]
1.
dane:
m = 3 kg
F = 12 N
szukane:
a = ?
a = F/m
a = 12N/3kg = 4 N/kg
a = 4 m/s²
2.
dane:
F = 4 N
a = 2 m/s²
szukane:
m = ?
a = F/m
m = F/a
m = 4N/2m/s²
m = 2 kg
c)
dane:
a = 0,3 m/s²
m = 3 kg
szukane:
F = ?
F = m * a
F = 3kg * 0,3m/s²
F = 0,9 N
a = F/m
m = F/a
1
a = F/m = 4 m/s²
2
m = F/a = 2 kg
3
F = m*a = 0,9N