Physics

Physics

Problem

A 0.25 kg0.25\,\text{kg} cart moves along a track with an initial velocity of 1.2 m s−11.2\,\text{m}\,\text{s}^{-1} to the right. It then experiences the following net horizontal force sequence: +50 N (to the right) for 0.010 s, followed immediately by −30 N (to the left) for 0.020 s. Determine the cart’s velocity immediately after the 0.030 s interval. Indicate the direction of motion in your answer.

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