Suppose the coefficient of kinetic friction between m, and the plane in the figure(Figure 1) is k = 0.10, and that ma = mg = 2.7kg. Part A As mp moves down, determine the magnitude of the acceleration of m, and mp, given 0 = 31° Express your answer using two significant figures. ? a = m/s² Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Part B What smallest value of uk will keep the system from accelerating? Express your answer using two significant figures. ΠV ΑΣφ ? Figure < 1 of 1 > Hk = Submit Previous Answers Request Answer mB X Incorrect; Try Again; 5 attempts remaining Provide Feedback

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.