Odpowiedź:
1. 6,42N
2. 10N
Wyjaśnienie:
1:
[tex]F = \frac{m v^{2} }{r} = m w^{2}r[/tex]
[tex]\omega = \frac{delta\ \alpha }{delta\ t} = \frac{2\pi}{12}[/tex]
[tex]\omega = \frac{2 * 3,14}{12} = 0,52[/tex]
[tex]F = \frac{95 * 0,52^{2} }{4} = 6,42 N[/tex]
2:
[tex]\omega = \frac{2 * 3,14}{8} = 0,785[/tex]
[tex]F = \frac{65 * 0,785^{2} }{4} = 10 N[/tex]
