Define: Centripetal force, free fall, acceleration due to gravity, escape velocity
Answers
Answer:
Acceleration due to gravity (g) - Acceleration due to gravity is acceleration produced in a body in free fall due to gravitational force of earth on the body. ... Centripetal force - Force applied on an object moving in a circular path which attracts object towards centre around which body is moving.
Explanation:
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ᴄᴇɴᴛʀɪᴘᴇᴛᴀʟ ғᴏʀᴄᴇ
ᴀ ᴄᴇɴᴛʀɪᴘᴇᴛᴀʟ ғᴏʀᴄᴇ ɪs ᴀ ғᴏʀᴄᴇ ᴛʜᴀᴛ ᴍᴀᴋᴇs ᴀ ʙᴏᴅʏ ғᴏʟʟᴏᴡ ᴀ ᴄᴜʀᴠᴇᴅ ᴘᴀᴛʜ. ɪᴛs ᴅɪʀᴇᴄᴛɪᴏɴ ɪs ᴀʟᴡᴀʏs ᴏʀᴛʜᴏɢᴏɴᴀʟ ᴛᴏ ᴛʜᴇ ᴍᴏᴛɪᴏɴ ᴏғ ᴛʜᴇ ʙᴏᴅʏ ᴀɴᴅ ᴛᴏᴡᴀʀᴅs ᴛʜᴇ ғɪxᴇᴅ ᴘᴏɪɴᴛ ᴏғ ᴛʜᴇ ɪɴsᴛᴀɴᴛᴀɴᴇᴏᴜs ᴄᴇɴᴛᴇʀ ᴏғ ᴄᴜʀᴠᴀᴛᴜʀᴇ ᴏғ ᴛʜᴇ ᴘᴀᴛʜ.
ғʀᴇᴇ ғᴀʟʟ
ɪɴ ɴᴇᴡᴛᴏɴɪᴀɴ ᴘʜʏsɪᴄs, ғʀᴇᴇ ғᴀʟʟ ɪs ᴀɴʏ ᴍᴏᴛɪᴏɴ ᴏғ ᴀ ʙᴏᴅʏ ᴡʜᴇʀᴇ ɢʀᴀᴠɪᴛʏ ɪs ᴛʜᴇ ᴏɴʟʏ ғᴏʀᴄᴇ ᴀᴄᴛɪɴɢ ᴜᴘᴏɴ ɪᴛ. ... ᴛʜᴇ ᴛᴇʀᴍ "ғʀᴇᴇ ғᴀʟʟ" ɪs ᴏғᴛᴇɴ ᴜsᴇᴅ ᴍᴏʀᴇ ʟᴏᴏsᴇʟʏ ᴛʜᴀɴ ɪɴ ᴛʜᴇ sᴛʀɪᴄᴛ sᴇɴsᴇ ᴅᴇғɪɴᴇᴅ ᴀʙᴏᴠᴇ. ᴛʜᴜs, ғᴀʟʟɪɴɢ ᴛʜʀᴏᴜɢʜ ᴀɴ ᴀᴛᴍᴏsᴘʜᴇʀᴇ ᴡɪᴛʜᴏᴜᴛ ᴀ ᴅᴇᴘʟᴏʏᴇᴅ ᴘᴀʀᴀᴄʜᴜᴛᴇ, ᴏʀ ʟɪғᴛɪɴɢ ᴅᴇᴠɪᴄᴇ, ɪs ᴀʟsᴏ ᴏғᴛᴇɴ ʀᴇғᴇʀʀᴇᴅ ᴛᴏ ᴀs ғʀᴇᴇ ғᴀʟʟ.
ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ᴅᴜᴇ ᴛᴏ ɢʀᴀᴠɪᴛʏ
ɪɴ ᴘʜʏsɪᴄs, ɢʀᴀᴠɪᴛᴀᴛɪᴏɴᴀʟ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ɪs ᴛʜᴇ ғʀᴇᴇ ғᴀʟʟ ᴀᴄᴄᴇʟᴇʀᴀᴛɪᴏɴ ᴏғ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪɴ ᴠᴀᴄᴜᴜᴍ — ᴡɪᴛʜᴏᴜᴛ ᴀɴʏ ᴅʀᴀɢ. ᴛʜɪs ɪs ᴛʜᴇ sᴛᴇᴀᴅʏ ɢᴀɪɴ ɪɴ sᴘᴇᴇᴅ ᴄᴀᴜsᴇᴅ ᴇxᴄʟᴜsɪᴠᴇʟʏ ʙʏ ᴛʜᴇ ғᴏʀᴄᴇ ᴏғ ɢʀᴀᴠɪᴛᴀᴛɪᴏɴᴀʟ ᴀᴛᴛʀᴀᴄᴛɪᴏɴ.
ᴇsᴄᴀᴘᴇ ᴠᴇʟᴏᴄɪᴛʏ
ᴛʜᴇ ᴍɪɴɪᴍᴜᴍ ᴠᴇʟᴏᴄɪᴛʏ ᴛʜᴀᴛ ᴀ ᴍᴏᴠɪɴɢ ʙᴏᴅʏ (sᴜᴄʜ ᴀs ᴀ ʀᴏᴄᴋᴇᴛ) ᴍᴜsᴛ ʜᴀᴠᴇ ᴛᴏ ᴇsᴄᴀᴘᴇ ғʀᴏᴍ ᴛʜᴇ ɢʀᴀᴠɪᴛᴀᴛɪᴏɴᴀʟ ғɪᴇʟᴅ ᴏғ ᴀ ᴄᴇʟᴇsᴛɪᴀʟ ʙᴏᴅʏ (sᴜᴄʜ ᴀs ᴛʜᴇ ᴇᴀʀᴛʜ) ᴀɴᴅ ᴍᴏᴠᴇ ᴏᴜᴛᴡᴀʀᴅ ɪɴᴛᴏ sᴘᴀᴄᴇ.