The 250-lb concrete block A is released from rest in the position shown and pulls the 400 lb log up the 30° ramp. Plot the velocity of the block as it hits the ground at B as a function of the coefficient of kinetic friction ug between the log and the ramp. Let uk vary between 0 and 1. Why does the computer not plot results for the entire range specified? 400lb 250lb A 30 deg 20' Hints: -- Model the system as a dependent motion analysis and derive acceleration equations in terms of the unknown quantities -- Use MATLAB to solve this system of equations (you'll need one equation for each unknown!) Define uk as a range in MATLAB from 0 to 0 in 0.01 increments -- Plot the function of the velocity for the block as it hits the ground
The 250-lb concrete block A is released from rest in the position shown and pulls the 400 lb log up the 30° ramp. Plot the velocity of the block as it hits the ground at B as a function of the coefficient of kinetic friction ug between the log and the ramp. Let uk vary between 0 and 1. Why does the computer not plot results for the entire range specified? 400lb 250lb A 30 deg 20' Hints: -- Model the system as a dependent motion analysis and derive acceleration equations in terms of the unknown quantities -- Use MATLAB to solve this system of equations (you'll need one equation for each unknown!) Define uk as a range in MATLAB from 0 to 0 in 0.01 increments -- Plot the function of the velocity for the block as it hits the ground
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The 250-lb concrete block A is released from rest in the position shown and pulls the 400 lb log
up the 30° ramp. Plot the velocity of the block as it hits the ground at B as a function of the
coefficient of kinetic friction ug between the log and the ramp. Let µk vary between 0 and 1. Why
does the computer not plot results for the entire range specified?
400lb
250lb
A
30 deg
20'
Hints:
-- Model the system as a dependent motion analysis and derive acceleration equations in terms of
the unknown quantities
-- Use MATLAB to solve this system of equations (you'll need one equation for each unknown!)
Define uk as a range in MATLAB from 0 to 0 in 0.01 increments
-- Plot the function of the velocity for the block as it hits the ground
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