Three large box are kept stationary over one other as shown in figure. A horizontal force 20 N acts on middle block as shown in figure. Then select the correct statement(s).
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
Acceleration of lowest block is 4.5 ms-2
b
Acceleration of upper most block is 2 ms-2
c
Friction between middle and lower block is 12 N.
d
Friction between middle and upper block is 2 N.
answer is A.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
f1 maximum =0.2×10=2Nf2 maximum =0.8×20=16Nf3 maximum =0.3×30=9NSo, acceleration of the lowest block isa3=f2−f31=4.5ms−2Acceleration of upper most block isa1=f11=2ms−2