5. A hanging 3.0 kg mass is attached to an 8.0 kg block on a ramp inclined at 30 to the horizontal. The coefficient of friction between the 8.0 kg block and the ramp is 0.26 and the pulley is frictionless. 8.0 kg 30 13.0 kg What is the acceleration of the 8.0 kg block down this ramp? (10 marks)3. Two objects are connected as shown. The 12 kg cart is on a frictionless 420 incline while the 15 kg block is on a horizontal surface having a coefficient of friction u = 0.23. m = 15 kg H = 0.23 m, = 12 kg frictionless 420 Determine the acceleration of the system of masses. (7 marks)