Please show solutions so I can understand them. Thank you

1. A rope of negligible mass pulls a 38-kg block vertically upward with a constant acceleration of 6.0 meters per second squared. Find the tension in the rope. w A weightless beam rests on a fulcrum. as shown. (a) Find the magnitude of force F that is required to keep the beam from rotating. (b) Find the magnitude of the upward force that the fulcrum exerts on the beam. 2.0 m 3.0 m 110 N 40 N 5.0 m 3. In the pulley system shown. all the pulleys are massless and frictionless and the rope is of negligible mass. The block has a weight of 2500 newtons. (a) Find the tension in the rope if the block is lifted at a constant velocity. b) Find the mechanical advantage of the pulley system. 2500 N 44. A mass of 52.0 kilograms is suspended in equilibrium with three ropes of negligible mass, as shown. Find the tensions 7, and 72. 60 T1 T2 52.0 kg A particle moved along the .x axis with a constant acceleration of -35.0 meters per second squared. The initial CS Position of the particle was at the origin and its initial velocity was +315 meters per second. cann (a) Find the velochy of the panicle a: 8 0 secondsner (b) Find the position of the particle at / = 8.0 seconds