Work & Kinetic Energy : ############## W = ∫ F dx ∵ F = dp / dt ∴ W = ∫ ( dp / dt ) dx ∵ dp = m dv ==> W = ∫ m dv ( dx / dt ) ∵ v = dx / dt ==> W = ∫ m v dv ==> W = m ∫ v dv ----> From v = v1 To v = v2 ==> W = m * ( 1 / 2 ) v² ----> From v = v1 To v = v2 ∴ W = ( 1 / 2 ) m Δv² =================== W : Work F : Force p : Momentum m : Mass V : speed =================== Work = Change in Kinetic Energy By Newtonian Mechanics that consider the mass is constant at all speeds .. ...................... M.N
Posted on: Mon, 09 Sep 2013 11:30:00 +0000
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