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A uniform ladder is leaning against a smooth wall on a rough ground. The ladder has a mass of 10 kilograms and is 4 metres long. If the ladder is in equilibrium, state an equation for the coefficient of friction of the ground

Uniform means that the centre of mass is half way up the ladder. Smooth wall means no friction is felt on the wall and rough ground means that there is friction felt there. First, draw a diagram and take mom...
AA
Answered by Alexandra A. • Maths tutor
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What are different ways that you can 'analyse ways in which meaning is shaped' in a poetic text?

Firstly, it is important to breakdown the meaning behind this assessment objective and to understand what the exam board are looking for to ensure that the student is hitting the criteria. An analysis of mea...
CC
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∫(3x+4)2dx

((3x+4)^3)/9 +C
JL
Answered by John L. • Maths tutor
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The equation the line L1 is y=3x-2 and the equation of line L2 is 3y-9x+5=0. Show that these two lines are parallel.

Two lines are parallel if they have the same gradient. The general equation for a straight line is y=mx+c, where m is the gradient and c is the y-intercept. If these lines are parallel, then m will be the sa...
ZM
Answered by Zoe M. • Maths tutor
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Find d^2y/dx^2 for y=4x^4−3x^3−6x^2+x

d^2y/dx^2 = 48x^2 - 18x -12
JL
Answered by John L. • Maths tutor
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