Could you please explain these questions along with the answers

Physics 11 Dynamics Part II 1). Two masses, m1 and m2 are on an Atwood Machine. If m1 = 20kg and m2 =30kg. a). Draw the Free Body Diagram of the system and label all the forces acting on both the masses. Physics 11 Dynamics Part II b). Determine the acceleration of M1 when the two masses are released from rest. (1.96m/s^2) 4). The lower block in Figure 4 is pulled on the rope with a tension force of 20N. The coefficient of c). Determine the tension on M2. (235.2N) friction of Kinetic between the top and bottom block is 0.3 and the coefficient friction between bottom d). Explain what you notice about the acceleration between the two masses and the tension between block and table is 0.3. the two masses 2). A worker is trying to lift a 50kg object off the back of the truck with a frictionless pulley and massless string. See figure 2. Block 1= 1.0kg Block 2= 2.0kg 20N Figure 2: The worker is trying to gently land the 50kg object using an Atwood Machine a). Draw a FBD on both blocks a). Once the truck drives off and the work Applies a force 300N to try to land the 50kg object down b). Calculate the acceleration of Block 1 and Block 2 (1.8m/s^2) gently on the ground. i). Which direction will this Atwood Machine rotate? ii). Calculate the net acceleration of the system. (3.8m/s^2) iii) Calculate the tension on the string. (300N) b). What is the minimum amount of applied force needed to land the 50kg object down gently. c). Calculate the tension Force using the answer from part B. 3). A three-block system is attached to an Atwood machine. The two masses (M, and M2) are attached to left side of the Pulley while the single mass (M3) is attached to the right side of the mass (see figure 3). Where M3 is heavier than both Mi plus Mz. Figure 3: Atwood Machine with 2 blocks M1 (top) and M2 (bottom) on the left and M3 on the right. The rope between M1 and M2 has T2 and the rope connecting M3 and Mi is T1 a). Label all the forces acting on this system in the FBD. b). Calculate the Net Acceleration and the Ti and T2 in terms of M1, Mz, M3, and g. [a=g(M3-M1-M2)/(M3+M2+M1), T1 = 2gM3(M1+M2)/(M1+M2+M3), T2 = 2MagM2(M1+M2+M3)]