I was asked a relativley simple question by someone the other day and I was a little shocked that I didn't know. The question was why is it harder to open a car door when it's at an angle parked half on the pavement and half on the road. I had a go at answering the person but I have no idea if I'm right. I thought the answer lay in vectors and I thought when the car is level the angle is tiny (in terms of drawing a right angle triangle and using trigonometry) so the vertical component will be small and the horizontal component will be large. When it's at an angle the vertical component becomes larger so it is more difficult to open. Is this even remotely correct? Please correct me if I'm wrong, thank you very much(adsbygoogle = window.adsbygoogle || []).push({});

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# Homework Help: Car doors and gravity

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