Physics 101 Homework #4 due Sunday, September 18th Questions a) This motion diagram shows an object that is A) speeding up B) slowing down b) This shows a car that is slowing down. Which could be its velocity and acceleration? A) +4m/s and +1.2 m/s² C) -4m/s and +1.2 m/s² B) +4m/s and -1.2 m/s² D) -4m/s and -1.2 m/s² +x 3 The velocity of an object changes from pointing straight up, to pointing to the right. What is the change in the velocity AV=V-V A) B) / C) \ D) / 2 10 c) If I'm riding in a car and feel a pseudoforce that pushes me back into my seat, that means that the car and I are accelerating A) forward B) backward 4m/s d) This car is driving around in a circle with constant speed. The acceleration of the car at the moment shown points A) to the left C) to the right B) upward D) downward E) the acceleration is zero 12 Vf V

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