the velocity of an object at rest is considered to be uniform. why?
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ᴠᴇʟᴏᴄɪᴛʏ ᴏғ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪs sᴀɪᴅ ᴛᴏ ʙᴇ ᴜɴɪғᴏʀᴍ ᴡʜᴇɴ ɪᴛs sᴘᴇᴇᴅ ᴀɴᴅ ᴅɪʀᴇᴄᴛɪᴏɴ ᴅᴏᴇs ɴᴏᴛ ᴄʜᴀɴɢᴇ . ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴀᴛ ʀᴇsᴛ ʜᴀs ᴜɴɪғᴏʀᴍ sᴘᴇᴇᴅ ᴏғ ᴢᴇʀᴏ ᴀʟʟ ᴛʜᴇ ᴛɪᴍᴇ ᴀɴᴅ ᴅᴏᴇs ɴᴏᴛ ᴇᴠᴇɴ ᴄʜᴀɴɢᴇ ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ . ʜᴇɴᴄᴇ, ᴛʜᴇ ᴠᴇʟᴏᴄɪᴛʏ ᴏғ ᴀɴ ᴏʙᴊᴇᴄᴛ ʀᴇsᴛ ɪs ᴄᴏɴsɪᴅᴇʀᴇᴅ ᴛᴏ ʙᴇ ᴜɴɪғᴏʀᴍ .
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