Define force of friction
Answers
ꜰʀɪᴄᴛɪᴏɴ :
ꜰʀɪᴄᴛɪᴏɴ ɪꜱ ᴛʜᴇ ꜰᴏʀᴄᴇ ʀᴇꜱɪꜱᴛɪɴɢ ᴛʜᴇ ʀᴇʟᴀᴛɪᴠᴇ ᴍᴏᴛɪᴏɴ ᴏꜰ ꜱᴏʟɪᴅ ꜱᴜʀꜰᴀᴄᴇꜱ, ꜰʟᴜɪᴅ ʟᴀʏᴇʀꜱ, ᴀɴᴅ ᴍᴀᴛᴇʀɪᴀʟ ᴇʟᴇᴍᴇɴᴛꜱ ꜱʟɪᴅɪɴɢ ᴀɢᴀɪɴꜱᴛ ᴇᴀᴄʜ ᴏᴛʜᴇʀ. ᴛʜᴇʀᴇ ᴀʀᴇ ꜱᴇᴠᴇʀᴀʟ ᴛʏᴘᴇꜱ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ: ᴅʀʏ ꜰʀɪᴄᴛɪᴏɴ ɪꜱ ᴀ ꜰᴏʀᴄᴇ ᴛʜᴀᴛ ᴏᴘᴘᴏꜱᴇꜱ ᴛʜᴇ ʀᴇʟᴀᴛɪᴠᴇ ʟᴀᴛᴇʀᴀʟ ᴍᴏᴛɪᴏɴ ᴏꜰ ᴛᴡᴏ ꜱᴏʟɪᴅ ꜱᴜʀꜰᴀᴄᴇꜱ ɪɴ ᴄᴏɴᴛᴀᴄᴛ.
ᴘʜʏꜱɪᴄꜱ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ:
ꜰʀɪᴄᴛɪᴏɴᴀʟ ꜰᴏʀᴄᴇ ʀᴇꜰᴇʀꜱ ᴛᴏ ᴛʜᴇ ꜰᴏʀᴄᴇ ɢᴇɴᴇʀᴀᴛᴇᴅ ʙʏ ᴛᴡᴏ ꜱᴜʀꜰᴀᴄᴇꜱ ᴛʜᴀᴛ ᴄᴏɴᴛᴀᴄᴛꜱ ᴀɴᴅ ꜱʟɪᴅᴇ ᴀɢᴀɪɴꜱᴛ ᴇᴀᴄʜ ᴏᴛʜᴇʀ. ᴀ ꜰᴇᴡ ꜰᴀᴄᴛᴏʀꜱ ᴀꜰꜰᴇᴄᴛɪɴɢ ᴛʜᴇ ꜰʀɪᴄᴛɪᴏɴᴀʟ ꜰᴏʀᴄᴇ: ᴛʜᴇꜱᴇ ꜰᴏʀᴄᴇꜱ ᴀʀᴇ ᴍᴀɪɴʟʏ ᴀꜰꜰᴇᴄᴛᴇᴅ ʙʏ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ ᴛᴇxᴛᴜʀᴇ ᴀɴᴅ ᴀᴍᴏᴜɴᴛ ᴏꜰ ꜰᴏʀᴄᴇ ɪᴍᴘᴇʟʟɪɴɢ ᴛʜᴇᴍ ᴛᴏɢᴇᴛʜᴇʀ.
ᴅɪʀᴇᴄᴛɪᴏɴꜱ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ :
ᴀᴛ ᴀɴʏ ɪɴꜱᴛᴀɴᴛ , ᴡʜᴇɴ ʙᴏᴅʏ ɪꜱ ᴍᴏᴠɪɴɢ. ᴠᴇʀʏ ᴄᴏɴᴄᴇᴘᴛ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ ɪᴛꜱᴇʟꜰ ɪꜱ ᴛᴏ ᴏᴘᴘᴏꜱᴇ ᴍᴏᴛɪᴏɴ. ʜᴇɴᴄᴇ, ꜰʀɪᴄᴛɪᴏɴᴀʟ ꜰᴏʀᴄᴇ ɪꜱ ᴀʟᴡᴀʏꜱ ᴅɪʀᴇᴄᴛᴇᴅ ɪɴ ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏᴘᴘᴏꜱɪᴛᴇ ᴛᴏ ᴛʜᴀᴛ ᴛᴏ ᴍᴏᴛɪᴏɴ.
ᴅɪꜱᴀᴅᴠᴀɴᴛᴀɢᴇꜱ of ꜰʀɪᴄᴛɪᴏɴ :
ᴛʜʀᴇᴇ ᴅɪꜱᴀᴅᴠᴀɴᴛᴀɢᴇꜱ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ ᴀʀᴇ :
- ꜰʀɪᴄᴛɪᴏɴ ᴘʀᴏᴅᴜᴄᴇꜱ ʜᴇᴀᴛ ᴡʜɪᴄʜ ᴅᴀᴍᴀɢᴇꜱ ᴛʜᴇ ᴍᴏᴠɪɴɢ ᴘᴀʀᴛꜱ ᴏꜰ ᴀ ᴍᴀᴄʜɪɴᴇ.
- ꜰʀɪᴄᴛɪᴏɴ ᴘʀᴏᴅᴜᴄᴇꜱ ᴡᴇᴀʀ ᴀɴᴅ ᴛᴇᴀʀ ᴏɴ ᴛʜᴇ ᴄᴏɴᴛᴀᴄᴛɪɴɢ ꜱᴜʀꜰᴀᴄᴇꜱ. ᴛʜɪꜱ ʀᴇᴅᴜᴄᴇꜱ ᴛʜᴇ ʟɪꜰᴇ ᴏꜰ ᴍᴀᴄʜɪɴᴇ ᴘᴀʀᴛꜱ, ᴛʏʀᴇꜱ ᴀɴᴅ ꜱʜᴏᴇ ꜱᴏʟᴇꜱ.
- ᴀ ʟᴏᴛ ᴏꜰ ᴇɴᴇʀɢʏ ɪꜱ ᴡᴀꜱᴛᴇᴅ ɪɴ ᴏᴠᴇʀᴄᴏᴍɪɴɢ ᴛʜᴇ ꜰʀɪᴄᴛɪᴏɴ ʙᴇꜰᴏʀᴇ ᴀɴ ᴏʙᴊᴇᴄᴛ ꜱᴛᴀʀᴛꜱ ᴍᴏᴠɪɴɢ.
Answer:
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. ... Dry friction is a force that opposes the relative lateral motion of two solid surfaces in contact.
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