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- Physics
- Advanced dynamics and statics
Whenever a force is distributed across a surface, it acts through a single point called the centroid. Finding the centroid tells us where to apply the equivalent resultant force, which we need to analyse structural behaviour. Use this resource to learn how to locate the centroid for simple and composite...
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Even at constant speed, circular motion involves constant acceleration. Your velocity is always changing direction, even if its magnitude stays the same. This is what you feel when a car rounds a sharp bend or a rollercoaster carves through a loop. This resource introduces centripetal acceleration and the centripetal force...
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Place a book on a tilted surface and it either slides down or stays put depending on the angle and how rough the surface is. What determines this? This resource helps you to understand the components of gravitational forces that affect this and use them to analyse forces on inclined...
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Linear motion is how an object moves in a straight line. To describe these motions, we need to know some technical terms like displacement, distance, velocity, speed and acceleration, and how to represent how they change over time. Use this resource to learn about the terms and their relationships to...
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- Physics
- Advanced dynamics and statics
Every time you open a door, tighten a bolt with a spanner, or adjust a bike's handlebars, you're creating a turning effect. The further from the pivot you apply a force, and the more directly you push, the stronger that effect. This turning effect is called a moment or torque,...
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In everyday life you might notice that it is harder to stop a heavy truck than a light car at the same speed, or a fast tennis ball than a slow one. This is because of momentum – a measure of how hard it is to stop a moving object....
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In everyday life, forces are all around us, from the push of your feet on the ground when you start walking, to the pull of gravity that keeps you on Earth. Newton’s three laws of motion describe how these forces affect the way objects start moving, keep moving, or come...
