Question

What are fluids? Do they exert force of friction?​

Answer 1

Liquids and gas are called fluids. The substances which have the ability to flow are called fluids. These fluids also exert force of friction on objects in motion through them. Fluid friction is friction that acts on objects that are moving through a fluid.

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Answer 2

❥ᴀ ғʟᴜɪᴅ ɪs ᴀ sᴜʙsᴛᴀɴᴄᴇ ᴛʜᴀᴛ ᴄᴏɴᴛɪɴᴜᴀʟʟʏ ᴅᴇғᴏʀᴍs ᴜɴᴅᴇʀ ᴀɴ ᴀᴘᴘʟɪᴇᴅ sʜᴇᴀʀ sᴛʀᴇss, ᴏʀ ᴇxᴛᴇʀɴᴀʟ ғᴏʀᴄᴇ. ғʟᴜɪᴅs ᴀʀᴇ ᴀ ᴘʜᴀsᴇ ᴏғ ᴍᴀᴛᴛᴇʀ ᴀɴᴅ ɪɴᴄʟᴜᴅᴇ ʟɪǫᴜɪᴅs, ɢᴀsᴇs ᴀɴᴅ ᴘʟᴀsᴍᴀs. ᴛʜᴇʏ ᴀʀᴇ sᴜʙsᴛᴀɴᴄᴇs ᴡɪᴛʜ ᴢᴇʀᴏ sʜᴇᴀʀ ᴍᴏᴅᴜʟᴜs, ᴏʀ, ɪɴ sɪᴍᴘʟᴇʀ ᴛᴇʀᴍs, sᴜʙsᴛᴀɴᴄᴇs ᴡʜɪᴄʜ ᴄᴀɴɴᴏᴛ ʀᴇsɪsᴛ ᴀɴʏ sʜᴇᴀʀ ғᴏʀᴄᴇ ᴀᴘᴘʟɪᴇᴅ ᴛᴏ ᴛʜᴇᴍ. ʏᴇs, ғʟᴜɪᴅs ᴇxᴇʀᴛ ғʀɪᴄᴛɪᴏɴ . ᴛʜᴇ ғʀɪᴄᴛɪᴏɴᴀʟ ғᴏʀᴄᴇ ᴇxᴇʀᴛᴇᴅ ʙʏ ғʟᴜɪᴅs ɪs[ ᴄᴀʟʟᴇᴅ ᴅʀᴀɢ ᴏʀ ғʟᴜɪᴅ ғʀɪᴄᴛɪᴏɴ.ᴛᴏ ᴏᴠᴇʀᴄᴏᴍᴇ ᴏʀ ᴍɪɴɪᴍɪᴢᴇ ᴀɪʀ ғʟᴜɪᴅ ғʀɪᴄᴛɪᴏɴ, ᴛʜᴇ. ᴡᴀᴛᴇʀ ᴇxᴇʀᴛs ғᴏʀᴄᴇ ᴏғ ғʀɪᴄᴛɪᴏɴ ᴏɴ ᴏʙᴊᴇᴄᴛ ᴡʜɪᴄʜ ᴍᴏᴠᴇ ᴛʜʀᴏᴜɢʜ ᴛʜᴇᴍ ᴀɴᴅ ᴏᴘᴘᴏsɪᴛᴇ ᴛʜᴇɪʀ ᴍᴏᴛɪᴏɴ.

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