6. Um ponto material em movimento rectilíneo uniformemente variado passa pelo ponto A de uma recta com velocidade de 15 m/s, dirigindo-se para o ponto B dessa mesma recta. Se a distância
AB é de 40 m eo intervalo de tempo desse percurso é de 5,0 s, a velocidade desse ponto material
ao passar por B é de: (escolha a opção correcta)
(A)30 m/s (B) 10 m/s (C) 1,0 m/s (D) 15 m/s
(E) 5,0 m/s​

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s