006 (part 1 of 2) 10.0 points A pulley is massless and frictionless. The masses 1 kg. 3 kg, and 7 kg are suspended as in the figure. 22.4 cm 3 kg 2 m Ti 7 kg 1 kg What is the tension 71 in the string be- tween the two blocks on the left-hand side of the pulley? The acceleration of gravity is 9.8 m/8. Answer in units of N. 007 (part 2 of 2) 10.0 points What is the magnitude of the acceleration of the lower left-hand block? Answer in units of m/s