Posted by Nick on Thursday, April 11, 2013 at 12:01pm.
Your written homework will be graded entirely on the clarity and completeness of
your derivation. No credit will be awarded for a final answer without a derivation.
As usual, simplify your final answers as much as possible.
A giant Pez dispenser of mass m rests on a ladder of mass M and length L. The
ladder is propped at an angle to the horizontal. The coefficient of static friction
between the ground and the ladder is S and the wall against which the ladder is
resting is frictionless. The Pez is a distance d up from the bottom of the ladder.
A) Draw an extended free-body diagram, showing all the forces acting on the
ladder and where they are acting.
B) What is the maximum mass m of Pez for which the ladder will not slip?
C) At a certain angle your expression for m becomes infinite. What is that
D) At another angle your expression for m becomes less than zero (negative).
Over what range of angles is the value of m negative?
E) What is the physical significance of these peculiar values of m?
Answer this Question
pysics - What is derivation? How does derivation differe from an experiment or ...
Geometry - A. Derive the distance formula (d) shown below for points A = (x1, y1...
Computer Science - Define a language that is not a regular language using a ...
physics - derivation of prism formula
working with data - josephs final averages in science class are shown in the ...
Physics/ Science - How does a derivation differ from an experiment or a theory?
Physics - Hi Would someone be able to confirm that the following equation wil ...
Physics Lab - Collision derivation problem. A car is released from rest on a ...
math - An instructor counts homework as 1/3 of the student's grade and the ...
Derivation of Physics Equation - How do we derive these laws: (most of the time...