As shown in the figure, there is a light spring on the horizontal table, the left end is fixed at point a, and the right end is located at point B when the spring is in the natural state. The height of the table is h. The object P with mass m compresses the spring slowly to point C to release it. After passing point B, the object P moves in a straight line with uniform deceleration, flies off the table from point D on the right edge, and falls to point n on the horizontal ground The distance between the two points is also s, the dynamic friction coefficient between the object P and the table is μ, the acceleration of gravity is g, the object P can be regarded as a particle, and the spring is within the elastic limit, regardless of the air resistance (1) If the mass of 5 m block Q (also can be regarded as a mass) slowly compresses the spring to point C, and the released block Q just stops at point B, suppose that the two blocks are made of the same material and have the same surface roughness, calculate the distance L between two points B and C

As shown in the figure, there is a light spring on the horizontal table, the left end is fixed at point a, and the right end is located at point B when the spring is in the natural state. The height of the table is h. The object P with mass m compresses the spring slowly to point C to release it. After passing point B, the object P moves in a straight line with uniform deceleration, flies off the table from point D on the right edge, and falls to point n on the horizontal ground The distance between the two points is also s, the dynamic friction coefficient between the object P and the table is μ, the acceleration of gravity is g, the object P can be regarded as a particle, and the spring is within the elastic limit, regardless of the air resistance (1) If the mass of 5 m block Q (also can be regarded as a mass) slowly compresses the spring to point C, and the released block Q just stops at point B, suppose that the two blocks are made of the same material and have the same surface roughness, calculate the distance L between two points B and C

(1) The following is the following: H = 12gt2 & nbsp & nbsp & nbsp & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp & nbsp; & nbsp; & nbsp; & nbsp & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp & nbsp & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; &In the process of block P moving from point B to point D, it is obtained from the kinetic energy theorem that: - μ MGS = 12m ν D2 - 12m ν B2 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; ν B = 2 μ GS + gs22h & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; (3) block P moving from point C to point B, it is obtained from the kinetic energy law that: & nbsp; W - μ MGL = 12m ν B2 - 0 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; L = S4 + S216 μ H A: (1) the velocity V D of block P moving to point D is sg2h; (2) the velocity v b of block P passing point B is 2 μ GS + gs22h; (3) the distance L between B and C is S4 + S216 μ H