A particle moves along a path defined by the equation $r = 2t^2\hat{i} + (3t - 1)\hat{j}$, where $r$ is in meters and $t$ is in seconds. At $t = 2$ seconds, a force $F = (4t\hat{i} + 6\hat{j})$ Newtons acts on the particle. What is the instantaneous power delivered by the force at $t = 2$ seconds?

Two blocks of masses $m_1$ and $m_2$ are connected by a massless string over a frictionless pulley. $m_1$ rests on a rough inclined plane with an angle of inclination $heta$. The coefficient of static friction between the block and the plane is $\mu_s$. If the system is in equilibrium, which of the following is the correct range for the ratio $\frac{m_2}{m_1}$?