i am not good in mechanics and this year i am in 12th and having modern physics .how should i now study now.

it is best that you take tutions for the required subjects in case you do not want to you should ask a friend to sit with you and study so he can help you out.. Most importantlyy you need to stop thinking that you are not good in this subject.. you just need to focus and concentrate more and devote

Take help of your teachers to find out what exactly is troubling you in mechanics. Then try to solve simple exercises first of mechanics and make your basic fundamentals claer. Do not jump to difficult exercises immediately. Do not compare with students who learn mechanics well .Focus on your method

Hi Rohit, The question posted by you is not clear. Kindly request you to post your query again with all the relevant details Thanks All The Best!