The tutor gives an example with friction force. I’ve never been curling. Even so, I can imagine the following question resonates with many curlers and spectators: A curling stone is released at 1.2m/s. If the coefficient of friction between the …

Physics: friction force: how far will the curling stone glide? Read more »

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The tutor illuminates a very plain, yet critical, concept from physics. Average velocity has the following definition: vave=displacement/time Displacement means your change in position. (Read more about the difference between distance and displacement in my post here.) Travelling straight-line, displacement …

Physics: average velocity Read more »

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