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10 Nov 2019
A massless spring of constant k = 75.0 N/m is fixed on the left side of a level track. A block of mass m 0.55 kg is pressed against the spring and compresses it a distance of d, as shown below. The block (initially at rest) is then released and travels toward a circular loop-the-loop of radius R = 1.4 m. The entire track and the loop-the-loop are frictionless except for the section between A and B. If the coefficient of kinetic friction between the block and the track along this section is muk = 0.36, and the length of the section is 2.1 m, determine the minimum compression, d, of the spring that enables the block to just make it through the loop-the-loop at point C.
A massless spring of constant k = 75.0 N/m is fixed on the left side of a level track. A block of mass m 0.55 kg is pressed against the spring and compresses it a distance of d, as shown below. The block (initially at rest) is then released and travels toward a circular loop-the-loop of radius R = 1.4 m. The entire track and the loop-the-loop are frictionless except for the section between A and B. If the coefficient of kinetic friction between the block and the track along this section is muk = 0.36, and the length of the section is 2.1 m, determine the minimum compression, d, of the spring that enables the block to just make it through the loop-the-loop at point C.
Tod ThielLv2
9 Nov 2019