Question

what is the meaning of Newton's second law of motion

Answer 1

The rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force.

Answer 2

ᴀɴsᴡᴇʀ࿐

ɴᴇᴡᴛᴏɴ's ʟᴀᴡ ᴏғ ᴍᴏᴛɪᴏɴ:-

1sᴛ ʟᴀᴡ:-

ᴏʙᴊᴇᴄᴛ ɪɴ ᴍᴏᴛɪᴏɴ ᴛᴇɴᴅs ᴛᴏ sᴛᴀʏ ɪɴ ᴍᴏᴛɪᴏɴ ᴀɴᴅ ᴏʙᴊᴇᴄᴛ ᴀᴛ ʀᴇsᴛ ᴛᴇɴᴅs ᴛᴏ sᴛᴀʏ ᴀᴛ ʀᴇsᴛ ᴜɴʟᴇss ᴀᴄᴛᴇᴅ ᴜᴘᴏɴ ʙʏ ᴀɴ ᴜɴʙᴀʟᴀɴᴄᴇᴅ ғᴏʀᴄᴇ.

2ɴᴅ ʟᴀᴡ:-

ғᴏʀᴄᴇ ᴇǫᴜᴀʟ ᴍᴀss ᴛɪᴍᴇs ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ(ғ= ᴍᴀ)

3ʀᴅ ʟᴀᴡ:-

ғᴏʀ ᴇᴠᴇʀʏ ᴀᴄᴛɪᴏɴ ᴛʜᴇʀᴇ ɪs ᴀɴ ᴇǫᴜᴀʟ ᴀɴᴅ ᴏᴘᴘᴏsɪᴛᴇ ʀᴇᴀᴄᴛɪᴏɴ.