1. given the equipment made available during the lab, under what conditions could the mass of the atwood’s pulley be ignored while accurate results are still achieved? 2. if this experiment were done on venus, how would the rotational speed of the pulley (with the same masses) be affected? explain. 3. a. what is the definition of static friction? b. explain how static friction causes rolling motion in the galileo’s ramp experiment. 4. does friction affect the acceleration of the balls on the track? that is, how does the acceleration of the ball compare to that of a frictionless block sliding down the same ramp? explain, giving a value. 5. state whether your atwood’s machine is more or less precise that galileo’s ramp. which of the two set ups led to result that are more accurate? explain both.