1. In Fig. 1 , three connected blocks are pulled to the right on a horizontal frictionless table by a force of magnitude T3 = 65.ON. If my = 12.0 kg.my = 24.0 kg, and my = 31.0 kg, calculate (a) the magnitude of the system's acceleration, (b) the tension T1, and (c) the tension T2. T2 11 12 Fig. 1. Exercise No. 1 2. In Fig. 2 is shown block A with mass mA = 4.0 kg and block B with mass mp = 2.0 kg is connected by a rope and a control whose mass is negligible. Block B and plane has a coefficient of kinetic friction uk = 0.50. While the inclined plane with angle = 30- has a smooth surface. Calculate (a) tension in the rope and (b) acceleration of the ball Frictionless, massless pulley IN A B HE Fig. 2. Exercise No. 23. A puck of mass m = 1.50 kg slides in a circle of radius r = 20.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 2.50 kg by means of a cord that extends through a hole in the table (Fig. 3). What speed keeps the cylinder at rest? Fig. 3. Question 3 4. A ball thrown upwards falls on the roof at a height of 20 m after hovering for 4s. The angle of trajectory of the ball at landing is = 60" (see fig below). (a) Calculate the horizontal distance d covered by the ball. (b) Calculate the horizontal (Vox) and vertical (Voy) initial velocity components 1000 1000