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This is a very common mechanics question you can be asked in a physics exam (or a M1 maths exam!). The key to solving it is to realise that the ball is in freefall, so it is only acted on by gravity. Sinc...
Firstly, we note that the acceleration is constant, therefore this problem should be tackled with the SUVAT equations. Let's write down the information we have: s we are asked to find this u = 50 m/s v =...
The static friction force holding the object on the slope is given by Fr where R = mg by Newton's second law of motion. We use a < sign as the static friction is a reaction force And the force drag...
A standing wave is formed when two waves travelling in oposite directions interfere with each other. The waves will be exactly one half wavelength out of phase, and this phase difference allows them to i...
Resistivity is the measure of a materials resistance per unit area
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