1. A child sits on a tire swing that is suspended by a single rope from a tree branch. What is the tension in the rope if the mass of the child and tire is 40 kg?
O a) 50 N
Ob) 40 N
Oc) 390 N
Od) 1600 N
O e) 4.1 N
2. A 310 kg spacecraft weighs 820 N on the surface of Planet Zphyz. What is the acceleration due to gravity on the