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Which of the following is not a system o...

Which of the following is not a system of units?
a) MKS
b) CGS
c) SI
d) Decibel

Text Solution

Verified by Experts

`R_1+QE=mg=0`
`rarr R_1=mg-QE`…………i

`F-T=muR_1`
From equation i.

`rarr T-mumg+muQE`
=0 …………ii
`T-muR_1=0`
`rarr T=muR_1`
=mu(mg-QE)`……iii
From equation ii
`F-mumg+muQE-mumg+muQE=0`
`rarr F-2mumg+2muQE=0`
`rarr F=2mumg-2muQE`
`rarr F=2mu(mg-QE)`
Maximum horizontal force that can be applied is `2mu(mg-QE)`.
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