why friction prodouces heat
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⠀⠀⠀ ❈Fʀɪᴄᴛɪᴏɴ ɪꜱ ᴀ ғᴏʀᴄᴇ ᴛʜᴀᴛ ᴏᴘᴘᴏꜱᴇꜱ ᴍᴏᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴀɴʏ ꜱᴜʀғᴀᴄᴇꜱ ᴛʜᴀᴛ ᴀʀᴇ ᴛᴏᴜᴄʜɪɴɢ. Fʀɪᴄᴛɪᴏɴ ᴏᴄᴄᴜʀꜱ ʙᴇᴄᴀᴜꜱᴇ ɴᴏ ꜱᴜʀғᴀᴄᴇ ɪꜱ ᴘᴇʀғᴇᴄᴛʟʏ ꜱᴍᴏᴏᴛʜ. Fʀɪᴄᴛɪᴏɴ ᴘʀᴏᴅᴜᴄᴇꜱ ʜᴇᴀᴛ ʙᴇᴄᴀᴜꜱᴇ ɪᴛ ᴄᴀᴜꜱᴇꜱ ᴛʜᴇ ᴍᴏʟᴇᴄᴜʟᴇꜱ ᴏɴ ʀᴜʙʙɪɴɢ ꜱᴜʀғᴀᴄᴇꜱ ᴛᴏ ᴍᴏᴠᴇ ғᴀꜱᴛᴇʀ ᴀɴᴅ ʜᴀᴠᴇ ᴍᴏʀᴇ ᴇɴᴇʀɢʏ.
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Friction is produced due to the irregularities between surfaces. Thus, when these surfaces rub against each other they produce heat. And the heat gets trapped in these irregularities.
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