accelerstion

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    Accelerstion in a frame of reference moving along the x-axis with speed u

    Acceleration in a frame of reference moving along the x-axis with speed u x'= (x-ut)/[{1-(u/c)^2}^(1/2)] ---->I t'= [t-ux/(c^2)]/[{1-(u/c)^2}^(1/2)] ---->II Find the 2nd order derivative of x' w.r.t. t'. Actually, Newton's laws of motion should have the same form in both a stationary...