n = 1000 t = 1 min = 60 s m = 100 g = 0,1 kg r = 20 cm = 0,2 m F = ? F = m * V² /r V = 2π rf f = n/t f = 1000 /60 s ≈ 16,7 1/s V² = 4 π ²r² f² wstawiam do wzoru na siłę F = m * 4 π² r² f² /r F = 4 m * π² * r * f² F = 4 * 0,1 kg * (3,14)² * 0,2 m * (16,7 1/s)² F = 219,99 N ≈ 220 N [kg * m/s²] = [ N ]
dane: n = 1000 obr. t = 1 min = 60 s m = 100 g = 0,1 kg r = 20 cm = 0,2 m szukane: Fr = ? Fr = 4TT^2 x m x f^2 x r f = n/t = 1000/60s = 16,666/s = 16,7 x 1/s Fr = 4 x 3,14^2 x (0,1kg)^2 x (16,7/s)^2 x 0,2m = 219,979 kg*m/s2 Fr = ok.220 N ============
