1 phút = 60s
- Chu kì: T = \(\dfrac{t}{n}\)= \(\dfrac{60}{4}\)= 15 (s)
- Tần số: f = \(\dfrac{1}{T}\)=\(\dfrac{1}{15}\)(Hz)
- Tốc độ góc: T = \(\dfrac{2\pi}{\omega}\) \(\Rightarrow\) \(\omega=\dfrac{2\pi}{T}\)\(=\) \(\dfrac{2\pi}{15}=\dfrac{2}{15}\pi\) (rad/s)
- Tốc độ dài: \(\upsilon=r\omega\) ⇔ \(\upsilon=\dfrac{3}{2}.\dfrac{2}{15}\pi\) = \(\dfrac{1}{5}\pi\) (m/s)
- Gia tốc hướng tâm: \(a_{ht}=r.\omega^2\Leftrightarrow a_{ht}=\dfrac{3}{2}.\left(\dfrac{2}{15}\pi\right)^2\)\(\simeq\) 0,263 (m/\(s^2\))