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What does a Voltmeter measure? a) Volta...

What does a Voltmeter measure?
a) Voltage
b) Current
c) Length
d) Speed

Text Solution

Verified by Experts

Because the block slipa on the table, maxium frictioN/Al force acts on it.
From the free body diagram
R=mg`

`:. F-muR=0`
`rarr F=muR=mumg`
But the table is at ret so frictioN/Al force at the legs of the table is also `muR_1`. Let it be so from the free body diagram,
`f_0-muR=0`
`rarr f_0=muR=mumg`
Total frictioN/Al froce on table by floor is `mumg`
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