define acceeleration
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rate of Change of position of an object w.r.t. time is called acceleration
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☞ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ɪs ᴛʜᴇ ʀᴀᴛᴇ ᴏғ ᴄʜᴀɴɢᴇ ᴏғ ᴠᴇʟᴏᴄɪᴛʏ. ᴜsᴜᴀʟʟʏ, ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ᴍᴇᴀɴs ᴛʜᴇ sᴘᴇᴇᴅ ɪs ᴄʜᴀɴɢɪɴɢ, ʙᴜᴛ ɴᴏᴛ ᴀʟᴡᴀʏs. ᴡʜᴇɴ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴍᴏᴠᴇs ɪɴ ᴀ ᴄɪʀᴄᴜʟᴀʀ ᴘᴀᴛʜ ᴀᴛ ᴀ ᴄᴏɴsᴛᴀɴᴛ sᴘᴇᴇᴅ, ɪᴛ ɪs sᴛɪʟʟ ᴀᴄᴄᴇʟᴇʀᴀᴛɪɴɢ, ʙᴇᴄᴀᴜsᴇ ᴛʜᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ᴏғ ɪᴛs ᴠᴇʟᴏᴄɪᴛʏ ɪs ᴄʜᴀɴɢɪɴɢ.
sɪ ᴜɴɪᴛ: ᴍ/s2, ᴍ·s−2, ᴍ s−2
ᴅɪᴍᴇɴsɪᴏɴ: ʟ ᴛ −2
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