Koło zamachowe na wale silnika ma prędkość obwodową 1500obr/min, średnica tego koła to 30 cm. Oblicz przyśpieszenie dośrodkowe.
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f = 1500 obr/min = 1500/60 s = 25 1/s
d = 30 cm
r = d/2
r = 15 cm = 0,15 m
a = ?
a = V²/r
V = 2πr/T ale T = 1/f
V = 2πr f
V² = 4π²r²f²
a = 4π²r²f²/r
a = 4π²rf²
a = 4 *(3,14)² * 0,15 m * (25 1/s)²
a ≈ 3697,4 m/s²