Questions
What is the maximum value of the force F such that the block shown in fig. does not move ?
a
20 N
b
25 N
c
30 N
d
40 N
detailed solution
Correct option is A
See fig.For no motion, F=cos60∘≤fwhere f=μN=μmg+Fsin60∘∴ Fcos60≤mg+Fsin60∘ F2≤1233g+F32or F2≤g or Fmax=2g=20N.Talk to our academic expert!
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