5. A particle moves in a circular path of radius r with speed v. It then increases its speed to 2vwhile traveling along the same circular path. By what factor has the period of the particlechanged?(а) 0.25(b) 0.5(c) 2(d) 4(e) impossible to determine(f) none6. A particle moves along a path, and its speed increases with time. In which of thefollowircases are its acceleration and velovectors parallel?a) when the path is circularb) when the path is straightc) when the path is a parabolad) never7. As a projectile thrown at an upward angle moves in its parabolic path (such as in thefigure), at what point along its path are the velocity and acceleration vectors for theprojectile perpendicular to each other?(a) nowhere(b) the highest point(c) the launch point(d) never(e) none8. Are officers in highway patrol more interested in(a) your average speed or(b) your instantaneous speed as you drive?(c) None9. A particle moves along a path, and its speed increases with time.(a) In which of the following cases are its acceleration and velocity vectors parallel?(b) when the path is circular

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Answered: 5. A particle moves in a circular path…

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