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A block of mass 50kg resting on a rough surface with a coefficient of friction equal to 1/3. Find the maximum angle at which the surface can be inclined to the horizontal without the block slipping. Give your answer to 3 significant figures

Break the solution down into small logical steps, outlining thought process in each one to make it clear to the examiner what it is you are try to do. Emphasise the importance of a clear and neat layout of t...
SF
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What is the doctrine of Novus Actus Interveniens, and why is it so important?

Novus actus interveniens, is a Latin phrase which translates to mean: an intervening act. For the actus reus of the crime to be established, the defendant must be both the factual and legal cause of that cri...
CC
Answered by Charlotte C. • Law tutor
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Explain the cosmological argument

Three forms of the cosmological argument: from motion; from causation; form contingency. First two respectively run as follows: (1) everything we observe in the world is moving/has a cause; (2) nothing can m...
SR
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Solve the following system of simultaneous equations: y=x^2 - 5x + 4 ; x+2y=19

Sub y=x^2 - 5x + 4 into x+2y=19x+2(x^2 -5x + 4) = 19x + 2x^2 -10x + 8 =192x^2 - 9x -11 = 0 (2x -11)(x+1) = 0x= 5.5x=-1
SR
Answered by Sulamaan R. • Maths tutor
5067 Views

differentiate with respect to x. i). x^(1/2) ln (3x),

From this we can see that equation has 2 parts therefore we should look to using the product rule which is used to differiantiate a two functions multiplied together so (fg)'=f'g+fg'. In this question the di...
JD
Answered by Jesse D. • Maths tutor
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