1. The problem statement, all variables and given/known data An object of mass m = 2.3±0.1 kg is moving at a speed of v = 1.25±0.03 m/s. Calculate the kinetic energy (K = 1 mv2) of the object. What is the uncertainty ￼in K? 2. Relevant equations k=1/2mv^2 3. The attempt at a solution I have figured out that the kinetic energy is 1.8 J, but how do I figure out the level of uncertainty for this question? We do not use derivatives yet. Can I take the equation for uncertainty of a power and uncertainy of a constant and add them together? : change in z= k change in x =1/2 * 0.1kg change in z= nx ^n-1 * change in x =2 * 1.25 ^2-1 * 0.03 then add them together to give an uncertainty of + or - 0.125?