Physics - SHM Question with Solution | TestHub

A particle executes SHM between $-X_m$ and $X_m$ (Figure 5.141-I). Its velocity $V(t)$ is partly graphed in Figure 5.141-II with points $A$ (time $t_1$) and $B$ (time $t_2$). Select the correct alternative(s): (A) at $t_1$ it is going towards $X_m$; (B) at $t_1$ its speed is decreasing; (C) at $t_2$ its position lies between $-X_m$ and $O$; (D) the phase difference between $A$ and $B$ must be $90^{\circ }<\Delta \varphi <180^{\circ }$.