on 14 cf 20 Map Sapling Learning not be measured directly. Rather, some other ph
ID: 1644597 • Letter: O
Question
on 14 cf 20 Map Sapling Learning not be measured directly. Rather, some other physical computed from the resúlts. For example, a bathroom s, such as force and mass, can Many physical property is measured and the desired physical scale does not actually measure mass or weight, but rather the compression distance of a spring. The numerical values on the scale are calibrated from the compression distance using basic physics principles such as Newton's second law. Coefficients of friction cannot be measured directly. In this problem, we are going to leam how we can indirectly measure the coefficient of kinetic friction between two surfaces by directly measuring the expansion of a spring. Consider a 5.45 kg block that is dragged by a spring on a (relatively) frictionless horizontal surface at constant velocity. Suppose the block reaches a rough patch and the spring stretches by 7.25 cm. Compute the of 122.0 N/m.Explanation / Answer
According to the question provided we need to find the value of the coefficient of kinetic friction.
F= k * x = 122.0 N/m * 0.0725 m = 8.845 N
coefficient of kinetic friction. = 8.845 N / 5.45 kg * 9.8 = 0.165605691 ========ANSWER)
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