When connected across the terminals of a cell, a voltmeter measures 5 V and a connected ammeter measures 10 A of current. A resistance of 2 ohm s is connected across the terminals of the cell. The current flowing through this resistance will be

Answer

`(m(R - r))/(M + m) , msqrt(2g(R - r))/(M (M + m))`

Explanation

`Deltax_(cm) = ((MDeltax_(1) + m Deltax_(2) + m Delta x_(2))/(M + m)) rArr 0 = (Mx + m(x + R - r)/(M + m))`
Distance moved by the cylinder `x = -(m(R - r))/(M + m)`
For motion along x-axis `0 = m(v_(1) + v_(2)) + mv_(2)` …..(i)
`mg (R -r) = (1)/(2) m (v_(1) + v_(2))^(2) + (1)/(2) Mv_(2)^(2)` ......(ii)
`:. v_(2) = msqrt((2g(R - r))/(M(M + m)))`