If a voltage of 2+5j and another voltage of 3+ 6j flows through two different resistors, connected in series, in a circuit, find the total voltage in the circuit.
a) 2+5j V
b) 3+6j V
c) 5+11j V
d) 5+10j V

Explanation

Given that `a=3.26 m/s^2 `
` T=3.9N`
After 2 sec, mass `m_1 ` hass velocity `
` v=u+at=0+3.26xx2`
` =6.52 m/supward
At this time `m_2` is moving 6.52 m/s downward.

Ast time 2 sec , `m_1` stops for a moment.
But `m_1` is moving upward with velocity 6.52 m/s. It will continue to move til fiN/Al velociyt (at highest point ) becomes zero.
`Her, v=0, u=6.52`
a=-g=-9.8 m/s^2 `
[since `m_1` is movng upward]
`v=u+at=6.52+(-9.8)t`
`rarr t= 6.52/9.8 0.66 = 2/3 sec.`
During this period of `2/3` sec, mass `m_2` also starts moving downward. So the string becomes tight again after time of ` 2/3` sec.