Aam/No. --1.
A uniform log of wood, AB, is 9 m long and weighs 320 N. It is
supported horizontally at two points P and Q. P is 3.0 m from end
A while Q is 2.0 m from end B. Calculate the reaction (weight
supported at each of the points P and Q).

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_