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What is meaning of dm and dt in physics? |
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Answer» In WORDS, the net FORCE acting on an object causes its momentum to change. If the net force is zero, the momentum does not change, it is conserved. d(mv)/dt = v dm/dt + m dv/dt = v dm/dt + m a. If the MASS of the object is CONSTANT, dm/dt = 0 so d(mv)/dt = m a and the two versions of Newton's second law are equivalent.Explanation: Mark as BRAINLIST |
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