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a spring of spring constant k is cut into three parts of length in ratio1:2:1.the algebric addition of spring constants of these springs will be

Answer»

10k Explanation:The formula for spring constant k=E xA / L where E is the Young's modulus of the material A the sectional area, and L is the length of the ideal spring. It means that spring constant is inversely related to length.Now if cut the spring into three PARTS, INDIVIDUAL parts would have different spring constants which would be;Length of A = 1/4L, means its K would be FOUR times nowLength of B = 2/4L, means its K would be two times nowLength of AC= 1/4L, means its K would be four times nowNow if we sum all these, their sum would be 10 times the original spring constant



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