(7%) Problem 10: An object with a mass of 3.98 kg moves along the a-axis under the influence of one force whose potential energy is given by the graph. In the graph, the vertical spacing between adjacent grid lines represents an energy difference of 2.87 J, and the horizontal spacing between adjacent grid lines represents a displacement of a. When the object is at position c = 0, it is moving in the positive a-direction with speed v. . D A 50% Part (a) In units of meters per second, what is the minimum value of v;, the speed of the particle at a = 0, so that the object just reaches position a = 7a? Grade Summary Vi m/s Deductions Potential 100% sin() cosO tan() 9 Submissions Attempts remaining: I cotan() asin() acos() (0% per attempt) atan() acotan() sinho detailed view cosh() tanh() cotanh() 0 END O Degrees O Radians HACKSPACE CLEAN Submit Hint Feedback I give up! Hints: 0 for a 0% deduction. Hints remaining: 0 Feedback: 0% deduction per feedback. 4 50% Part (b) Suppose that the initial speed was 2. // times that calculated in part (a). What would be the speed, in units of meters per second, of the object when it reaches position x - 9a