(Solved): Two masses are connected by a string as shown in the figure. Mass mA=3.0kg rests on a friction ...

Two masses are connected by a string as shown in the figure. Mass $m_{\mathrm{A}}=3.0\mathrm{kg}$ rests on a frictionless inclined plane, while $m_{\mathrm{B}}=4.7\mathrm{kg}$ is initially held at a height of $h=0.60\mathrm{m}$ above the floor. (Figure 1) If the masses were initially at rest, use the kinematic equations to find their velocity just before $m_{\mathrm{B}}$ hits the floor. Express your answer to two significant figures and include the appropriate units. Part C Use conservation of energy to find the velocity of the masses just before $m_{\mathrm{B}}$ hits the floor. Express your answer to two significant figures and include the appropriate units. Figure 1 of 1