16 68. As the vector sum of all the forces acting on a mov- ing object increases, the acceleration of the object (1) decreases (2) increases (3) remains the same 69. Which graph best represents the motion of an object that has no unbalanced force acting on it? Time Time (1) (3) Time Time (2) (4) 70. Four forces act on an object, as shown in the follow- ing diagram. If the object is moving with a constant velocity, what is the magnitude of force F? 30. N 40. N 30. N 71. The following graph represents the net force acting on an object as a function of time. During which time interval is the velocity of the object constant? vilstne Force vs. Time 3F 2F 0. - F -2F -3F 1 2 3 4 5 6 Time Acceleration Force Velocity

16 68. As the vector sum of all the forces acting on a mov- ing object increases, the acceleration of the object (1) decreases (2) increases (3) remains the same 69. Which graph best represents the motion of an object that has no unbalanced force acting on it? Time Time (1) (3) Time Time (2) (4) 70. Four forces act on an object, as shown in the follow- ing diagram. If the object is moving with a constant velocity, what is the magnitude of force F? 30. N 40. N 30. N 71. The following graph represents the net force acting on an object as a function of time. During which time interval is the velocity of the object constant? vilstne Force vs. Time 3F 2F 0. - F -2F -3F 1 2 3 4 5 6 Time Acceleration Force Velocity

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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