Pramod J AskiitiansExpert-IIT-B
Last Activity: 13 Years ago
Dear student,
Elasticity and area of cross section are required to find the deflection only due to weight.
let x be the initial deflection,
force due to pendulum is maximum when it is at mean position
=> velocity at mean position is = [2g*l(1-cos(theta)]^1/2
force at mean position = mv^2/l
=> 9*g/1 = 90N
so maximum deflection will be 2x.