Lab+8+-+Physlets

= __Physlets__ = 3.2 - Run the Gauntlet, Controlling x, v, and a. a) I can, indeed. b) Acceleration because it changes with each second which is harder to judge. c) Position = 0.05 seconds. Velocity = 6.3 seconds. Acceleration = 11.7 seconds.

4.2 - Change the Two Forces Applied a) The ball moves towards or away from each source of force. The ball moves along the resultant vector since it is influenced by both forces so long as they are within 10 cm of the forces.

4.3 - Change the Force Applied to Get to the Goal a) The ball moves towards the crosshairs when the force is attraction and moves away from them them when the force is repulsion. b) No because there is acceleration. c) Attraction = 1.32 seconds. Repulsion = 1.28 seconds.

Illustration 3.2 - Motion on an Incline a) He discovered the acceleration due to gravity by slowly increasing the angle of a smooth inclined plane and observing the speed of the ball as it rolled down the plane.