Question

Question :-
Deduce Newton’s first law from the second law ?
_________________________________
class 9th
chapter 9 - force and laws of motion

Answer 1

Answer:

This means that the object will continue moving with uniform velocity, u throughout the time, t. If u is zero then v will also be zero. That is, the object will remain at rest.

Answer 2

ɴᴇᴡᴛᴏɴ's sᴇᴄᴏɴᴅ ʟᴀᴡ sᴛᴀᴛᴇs ᴛʜᴀᴛ

=$\huge\fbox\red{ ғ=ᴍᴀ }$

ᴀssᴜᴍɪɴɢ ɴᴏ ᴇxᴛᴇʀɴᴀʟ ғᴏʀᴄᴇ ɪs ᴀᴘᴘʟɪᴇᴅ

$\huge\boxed{\fcolorbox{purple}{ink}{ɪ.ᴇ ғ=0}}$

$0 = ma \\ 0 = m (\frac{v - u} {t}) \\ \\ \frac{0}{m} = ( \frac{v - u}{t} ) \\ \\ 0 \times t = v - u \\ 0 = v - u \\ so \\ u = v$

______________________________

This means that the object will continue moving with uniform velocity, u throughout the time, t. If u is zero then v will also be zero

_______________________________

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs