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Relative is an important word. In Fig. 9-72, block L of
Chapter , Problem 83(choose chapter or problem)
Relative is an important word. In Fig. 9-72, block L of mass mL ! 1.00 kg and block R of mass mR ! 0.500 kg are held in place with a compressed spring between them. When the blocks are released, the spring sends them sliding across a frictionless floor. (The spring has negligible mass and falls to the floor after the blocks leave it.) (a) If the spring gives block L a release speed of 1.20 m/s relative to the floor, how far does block R travel in the next 0.800 s? (b) If, instead, the spring gives block L a release speed of 1.20 m/s relative to the velocity that the spring gives block R, how far does block R travel in the next 0.800 s?
Questions & Answers
QUESTION:
Relative is an important word. In Fig. 9-72, block L of mass mL ! 1.00 kg and block R of mass mR ! 0.500 kg are held in place with a compressed spring between them. When the blocks are released, the spring sends them sliding across a frictionless floor. (The spring has negligible mass and falls to the floor after the blocks leave it.) (a) If the spring gives block L a release speed of 1.20 m/s relative to the floor, how far does block R travel in the next 0.800 s? (b) If, instead, the spring gives block L a release speed of 1.20 m/s relative to the velocity that the spring gives block R, how far does block R travel in the next 0.800 s?
ANSWER:Step 1 of 4 a) The linear momentum is conserved, Implies, Given, Mass of bock L, Mass of bock R, The velocity of block L relative to the floor, So,