(Solved): Two packages at UPS start sliding down the \( 20^{\circ} \) ramp shown in the figure. Package A has ...

Two packages at UPS start sliding down the \( 20^{\circ} \) ramp shown in the figure. Package A has a mass of \( 7.00 \mathrm{~kg} \) and \( \mathrm{a} \) coefficient of kinetic friction of \( 0.180 \). Package \( B \) has a mass of How long does it take package A to reach the bottom? \( 12.0 \mathrm{~kg} \) and a coefficient of kinetic friction of \( 0.150 \). Express your answer with the appropriate units. (Figure 1) You may want to review (Page) . For help with math skills, you may want to review: Vector Components The \( 100 \mathrm{~kg} \) block in figure takes \( 6.30 \mathrm{~s} \) to reach the foor after being released from rest. Part A (Figure 1) What is the mass of the block on the left? You may want to review (Page). Express your answer with the appropriate units. The \( 1.0 \mathrm{~kg} \) block in the figure is tied to the wall with a rope. It sits on top of the \( 2.0 \mathrm{~kg} \) block. The lower block is pulled to the right with a tension force of \( 20 \mathrm{~N} \). The coetficient of kinetic Part A triction at both the lower and upper surfaces of the \( 2.0 \mathrm{~kg} \) block What is the tension in the rope holding the \( 1.0 \mathrm{~kg} \) block to the wall? is \( \mu_{\mathrm{k}}=0.44 \). (Eigure.1) Express your answer with the approprlate units. You may want to reviow (Page) For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Car on rolling board. Part B What is the acceleration of the \( 2.0 \mathrm{~kg} \) block? Express your answer with the appropriate units.