13.) first stat is wrong.
i = V/R (1-e-t/L/R) = V/R(1-e-1/2) ≈ V/R(1- 2/3) =1/3.V/R
stet1: q ptle of mass M is projected with velocity V making 45degres with horizontal at d highest pt of its path , d magnitude of its angular momentum abt d pt of projection is MV^3/ √2g
stat:2- Lvector+RvecXPvecr
state2- a heavy ptle is suspended frm a rigid suppt by means of an in extensible string of length L it is given a horizontal velocity rtgLat d instsnt d tension d string is equal to d weight of d ptle its speed is rt2gL/3
state2: when an object tied at d end of d string is whirled in a vertical circle d tension in d string is givn by T =MV^2/r+Mgcostheta[usual notation}
state1:resistor R& a pure inductorL r connected to a source pd V thru a switch d switches closed at time t=0 d iin d ckt at t=L/2R is 0.607 v/r
state2 : at ne instant ldi/dt+iR=V
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5 Answers
11Q1
STATEMENT 1 IS PERFECT
I THINK THIS 1 IS CLEARED NOW
THIS COULD HAVE BEEN THE DOUBT
IF FURTHER DOUBTS THEN ASK[1]
111CONCEPT IN THE 2 : CENTRIPETAL IS NOT A FORCE BUT A CAUSE OF FORCE
U CAN'T CONSIDER CENTRIPETAL AND CENTRIFUGAL AS A FORCE !!!!!!!!!!!!!!!
