The diagram shows a uniform beam supported by two light cables, AB and AC, which are attached ...

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AQA Mechanics question. Part D is really hard at 01:41.

Taking moments, balancing forces, vector triangles and even some advice on rounding errors, a great resource of A Level year 12 and year 13 students.

The diagram shows a uniform beam supported by two light cables, AB and AC, which are attached to a single steel cable from a crane. The beam is stationary and in equilibrium.

00:00 hello
00:18 part a, b, c - easy bits
01:41 d - hard - method 1
06:01 d - hard - method 2
08:07 e young's modulus
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Thank you so much!! this video really helped me grasp the concept. I recently recieved a bad grade in my end of year 12 mock and now im putting some work in over the summer to do well in the second mocks we have when we get back. Thanks for the video

hussein