RAILWAY TECHNICIAN SKJHA SCIENCE उत्तोलक (lever) न्यूटन के नियम और घर्षण । कार्य शक्ति उर्जा

[@LAKSHMANKUMAR-xm4ow]

Bahut achchha mehanat kar ke karbate ho dhiraj

[@careermakerbydksir]

Thanks Bhai

[@MrShekharKumaryadav]

Very nice video sir ji 🙋🙋✨💫✨💫

[@riyagupta4752]

Bhut acha sir ji ❤❤

[@SantoshThakur-v2r]

Good morning sir

[@chandanrajput6567]

Ntpc mai Kitana aye ga sir jee

[@careermakerbydksir]

3 question