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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
6442 Views

∫(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
10159 Views

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
7048 Views

7^6 x 7^3

7^9
JL
Answered by John L. • Maths tutor
3813 Views