Part A A 1.4-kg block slides on a horizontal surface with a speed of v = 0.80m /s and an acceleration of magnitude a = 3.4m/s2, as shown in (Figure 1). What is the coefficient of kinetic friction between the block and the surface? Express your answer to two significant figures. IVO AEd C . Submit Request Answer Part B When the speed of the block slows to 0.40 m/s , is the magnitude of the acceleration greater than, less than, or equal to 3.4 m/s? ? Greater than 3.4 m/s2 Equal to 3.4 m/ s2 Figure Less than 3.4 m/$2 Submit Request Answer Provide Feedback Next &gt