GMmpie/LR
is that the ans
FIND THE FORCE OF ATTRACTION ON A PARTICLE OF MASS m PLACED AT CENTREA OF A SEMICIRCULAR WIRE OF LENGTH L AND MASS M
giv the ans then .....hide it
i jus cnt get whr did i go wrong
ab to temme the ans atleast so tht i can figure out whr did i go wrong
oh my god ...finally'''
i got it
dimaag mein jang lag gaya hai
its rili simple....
actually here we hav to do vector integration
i mean resolve the force into components and then integrate
in the above expression mak the limits -pie/2 to pie/2
and also bring a cos thieta term in the integral
the sin component gets cancelled