Questions
The expression for centripetal force (F) depends upon mass of body (m), speed (v) of the body and the radius (r) of circular path will be expression for centripetal force
detailed solution
Correct option is B
According to question,F∝mavbrcF=kmavbrck, being a dimensionless constant.From homogeneity of dimensions,LHS = RHSMLT-2=MaLT-1bLcor MLT-2=MaLb+cT-bComparing the powers, we obtaina =1b + c =1-b=2⇒b=2∴ 2+c=1⇒c=-1Therefore, F=kmv2r-1=kmv2rThe experimental value of k is found to be here∴ F=mv2rTalk to our academic expert!
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The quantities A and B are related by the relation A/B = m, where m is the linear mass density and A is the force, the dimensions of B will be
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