Recent content by nouvelague

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    A 2.8-kg block slides over the smooth icy hill -- Find the minimum speed to clear the pit

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    A microwave oven of mass 13.0kg is pushed a distance 8.80m up a ramp

    For this one, am i supposed to use W = change in KE where i calculate work as ((F - friction - mgsintheta) times d), or am i supposed to do the change in -mgh plus Wfriction = change in KE (where if it is in this case, is the friction going to be a negative number?)