Question

Define Kinetic friction.​

Answer 1

Answer:

the kinetic energy (KE) of an object is the energy that it possesses due to its motion.[1] It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity.

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Answer 2

$\huge✿{\bold{\pink{ᗩɴʂᴡᴇʀ}}}$

$\small\orange{\bold{\sf{Kinetic \: \: Friction \: \: Formula}}}$

ᴡᴇ ᴡɪᴛɴᴇss ɪɴ ᴏᴜʀ ᴅᴀɪʟʏ ʟɪғᴇ ᴀʙᴏᴜᴛ ᴛʜᴇ ғʀɪᴄᴛɪᴏɴᴀʟ ғᴏʀᴄᴇ ᴛᴀᴋɪɴɢ ᴘʟᴀᴄᴇ ɪɴ ᴍᴏᴠɪɴɢ ʙᴏᴅɪᴇs ᴡʜɪᴄʜ ᴀʀᴇ ɪɴ ᴍᴜᴛᴜᴀʟ ɪɴᴛᴇʀᴀᴄᴛɪᴏɴ. ᴛʜᴇʀᴇ ᴀʀᴇ ᴍᴀɴʏ ᴛʏᴘᴇs ᴏғ ғʀɪᴄᴛɪᴏɴ ᴡʜɪᴄʜ ᴀʀᴇ ᴘᴏssɪʙʟᴇ. ʙᴜᴛ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ᴀʟsᴏ ᴋɴᴏᴡɴ ᴀs sʟɪᴅɪɴɢ ғʀɪᴄᴛɪᴏɴ ɪs ᴍᴜᴄʜ ɪᴍᴘᴏʀᴛᴀɴᴛ ᴡɪᴛʜ ᴍᴏᴠɪɴɢ ʙᴏᴅɪᴇs. ᴀʟsᴏ, sᴛᴀᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ᴀғғᴇᴄᴛs ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ʙᴇғᴏʀᴇ ɪᴛ sᴛᴀʀᴛs ᴍᴏᴠɪɴɢ. ᴀɴᴅ ʀᴏʟʟɪɴɢ ғʀɪᴄᴛɪᴏɴ sᴘᴇᴄɪғɪᴄᴀʟʟʏ ʀᴇʟᴀᴛᴇs ᴛᴏ ᴛʜᴇ ʀᴏʟʟɪɴɢ ᴏʙᴊᴇᴄᴛs ʟɪᴋᴇ ᴡʜᴇᴇʟs. ɪɴ ᴛʜɪs ᴛᴏᴘɪᴄ, ᴡᴇ ᴡɪʟʟ ᴅɪsᴄᴜss ᴛʜᴇ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ᴄᴏɴᴄᴇᴘᴛs ᴡɪᴛʜ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ғᴏʀᴍᴜʟᴀ ᴀɴᴅ ᴇxᴀᴍᴘʟᴇs. ʟᴇᴛ ᴜs ʙᴇɢɪɴ ᴛʜᴇ ᴛᴏᴘɪᴄ!

$\small\red{\bold{\sf{Definition \: \: of \: \: Kinetic \: \: Friction}}}$

ᴛʜᴇ ᴍᴏsᴛ sᴛʀᴀɪɢʜᴛғᴏʀᴡᴀʀᴅ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ᴅᴇғɪɴɪᴛɪᴏɴ ɪs ɢɪᴠᴇɴ ᴀs ᴛʜᴇ ʀᴇsɪsᴛᴀɴᴄᴇ ᴛᴏᴡᴀʀᴅs ᴛʜᴇ ᴍᴏᴛɪᴏɴ ᴄᴀᴜsᴇᴅ ʙʏ ᴛʜᴇ ᴄᴏɴᴛᴀᴄᴛ ʙᴇᴛᴡᴇᴇɴ ᴀ sᴜʀғᴀᴄᴇ ᴀɴᴅ ᴛʜᴇ ᴍᴏᴠɪɴɢ ᴏʙᴊᴇᴄᴛ ᴀɢᴀɪɴsᴛ ɪᴛ. ᴛʜᴇ ғᴏʀᴄᴇ ᴏғ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ᴀᴄᴛs ɪɴ ᴛʜᴇ ᴏᴘᴘᴏsᴇ ᴏғ ᴛʜᴇ ᴍᴏᴠɪɴɢ ᴏʙᴊᴇᴄᴛ. ᴛʜᴇʀᴇғᴏʀᴇ, ɪғ ᴡᴇ ᴘᴜsʜ sᴏᴍᴇᴛʜɪɴɢ ғᴏʀᴡᴀʀᴅ, ғʀɪᴄᴛɪᴏɴ ᴡɪʟʟ ᴘᴜsʜ ɪᴛ ʙᴀᴄᴋᴡᴀʀᴅ.

ᴛʜᴇ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ғᴏʀᴄᴇ ᴏɴʟʏ ᴀᴘᴘʟɪᴇs ᴛᴏ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴛʜᴀᴛ ɪs ᴍᴏᴠɪɴɢ ᴀɴᴅ ɪᴛ ɪs ᴏᴛʜᴇʀᴡɪsᴇ ᴋɴᴏᴡɴ ᴀs sʟɪᴅɪɴɢ ғʀɪᴄᴛɪᴏɴ. ᴀɴᴏᴛʜᴇʀ ᴍᴀᴊᴏʀ ᴛʏᴘᴇ ᴏғ ғʀɪᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ sᴏʟɪᴅs ɪs sᴛᴀᴛɪᴄ ғʀɪᴄᴛɪᴏɴ. ɪᴛ ɪs ᴛʜᴇ ʀᴇsɪsᴛᴀɴᴄᴇ ᴛᴏ ᴍᴏᴛɪᴏɴ ᴄᴀᴜsᴇᴅ ʙʏ ᴛʜᴇ ғʀɪᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴀ sᴛɪʟʟ ᴏʙᴊᴇᴄᴛ ᴀɴᴅ sᴏᴍᴇ sᴜʀғᴀᴄᴇ. ᴛʜᴇ ᴄᴏᴇғғɪᴄɪᴇɴᴛ ᴏғ sᴛᴀᴛɪᴄ ғʀɪᴄᴛɪᴏɴ ɪs ɢᴇɴᴇʀᴀʟʟʏ ғᴏᴜɴᴅ ʟᴀʀɢᴇʀ ᴛʜᴀɴ ᴛʜᴇ ᴄᴏᴇғғɪᴄɪᴇɴᴛ ᴏғ ᴋɪɴᴇᴛɪᴄ ғʀɪᴄᴛɪᴏɴ.

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