Answer Happy

1. From an acceleration vs. time graph of an object, we can determine the final velocity of the object (a) True (b) False 2. Consider a rigid disk. Is it possible for the net force on the disk to equal zero if the net torque is not equal to zero? (a) Yes (b) No 3. The tangential acceleration of a spinning rigid object is the same for any particle making up the object (a) True (b) False 4. For a given scenario, 7 = (3 m.0 m) and an applied force acting at (x,y) = (3 m.0 m) is given by F = (0 N. -4 N). Assuming a point of rotation (pivot point) to be at the origin, using conventional definition of directions, the torque is (a) Positive (counterclockwise) (b) Negative (clockwise) 5. Consider two identical students. Student A is accelerating from +5.0 m/s to +10 m/s, while student B is accelerating from +10 m/s to +15 m/s. Hence, they are both increasing their speeds by 5.0 m/s and we must conclude that the amount of work required to change their speeds are the same for both students. (a) True (b) False