24all m seem similar in figure...................tell me which is M and m??
plese tell me how to solve this prob(HCV)
Q:find M such thatthe block m appears to be in rest w.r.t. M'.assume wedge angle to be θ
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5 Answers
24
62i like to look at these in ground frame.. I kind of dont like pseudo force a lot
Look at the fbd
Mg-t=Ma
t-Ncosθ=m1a
N cosθ=ma
mg=N sin θ
Thus, N cos θ = mg tan θ
Thus,
Mg-t=Ma
t-mg tan θ=m1a
mg tanθ=ma
Thus,
Mg=(M+m1+m)a
a= Mg/(M+m1+m)
Substitute the value of a and fidn the value of M