(a) Is the momentum of the cart-spring system in Figure 5.8 constant? (b) Is the system isolated?...
Question:
(a) Is the momentum of the cart-spring system in Figure 5.8 constant?
(b) Is the system isolated?
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Figure 5.8 Initial and final energies for two choices of system. (a) Expanding spring accelerates cart from rest www Spring relaxed Spring compressed (b) Initial and final energies: system cart only K Ei Cart speeds up. K Ein K+K Finer (c) Initial and final energies: system = cart + spring www K Einzi K+ Einri K, Einf K State of cart doesn't change. Spring expands. AK AE Eini
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a No The momentum of the system is zero before the spri...View the full answer
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