Please answer
Please answer IVhen a force is applied to a spring, it gets extended by an amount Ax as shovm (a) Name the law relating stress and stain. (b) Calculate the stress developed in a metal lure when it is strained by 30%. Given young's modulus of material is 200 GPa. (c) Which is more elastic, steel or mbber? (1+2+2)

t h e l a w i s h o o k e s l a w a n d i t s a y s t h a t F = k ∆ x w h e r e k i s t h e s p r i n g c o n s \tan t . b . Y = \frac{s t r e s s}{s t r a i n} 2 * 10^{11} = \frac{s t r e s s}{\frac{0.3 L}{L}} s t r e s s = 6 * 10^{10} P a c . s t e e l i s m o r e e l a s t i c t h a n r u b b e r b e c a u s e s t e e l c o m e s b a c k t o i t s o r i g i n a l s h a p e f a s t e r t h a n r u b b e r w h e n t h e d e f o r m i n g f o r c e s a r e r e m o v e d .