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An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted upon by an unbalanced force. Force equals mass times acceleration. For every action there is an equal and opposite reaction. Do you need to learn about Newton's first three...
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We will look at the gravitational force acting on an object on a slope. These can be divided into two components, the normal (resisting) force pushing into the slope which produces friction and the shear or driving force pushing the block down the slope. So we must consider forces parallel...
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Momentum is a vector quantity, so it is important to remember that direction must be taken into account when doing problems on momentum. Let's explore how we can do this. The moment p of an object is the product of its mass \(m\) and velocity \(v\), or: \[\begin{align*} p &...
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Linear motion refers to the motion of an object in a straight line. Describing these motions require some technical terms such as displacement, distance, velocity, speed and acceleration. The terms and their relationships to one another are described in this module. Scalar and vector quantities Quantities that have only a...
