7.

A circus performer hangs stationary from a rope. She then begins to climb upward by pulling herself up, hand over hand. When she starts climbing, is the tension in the rope less than, equal to, or greater than it is when she hangs stationary? O less than O equal to O greater thanAn object is moving at a constant velocity. All but one of the following statements could be true, Which one cannot be true? O No forces act on the object. O Three forces act simultaneously on the object. O A single force acts on the object. O Two forces act simultaneously on the object.A car has a mass of 1600 kg. It is stuck in the snow and is being pulled out by a cable that applies a force of 7560 N due north. The resistance of the snow and mud also applies a force to the car, which has a magnitude of 7340 N and points due south, What is the acceleration of the car? O 0.14 m/s north O 4.7 m/s2 north O 4.6 m/s2 south O 9.3 m/s south There is not enough information to determine the car's acceleration