An object with a mass of #24 kg# is on a ramp at an incline of #pi/12 #. If the object is being pushed up the ramp with a force of # 4 N#, what is the minimum coefficient of static friction needed for the object to remain put?

1 Answer
Jan 28, 2016

Answer:

0.0175

Explanation:

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angle B= #pi/12#
mass=m=24kg
A=force to keep th object upright #=mgcosB=24*9.81*cos(pi/12)=227.42N#
F=friction=4N
we know,
co-efficient, #mu=F/A#
#=(4N)/(227.42N)#

#=0.0175#