Question

Q4 Why does the air filled in a
bicycle tube keep it light?​

Answer 1

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Answer⤵️

ᴛʜᴇ ᴀɪʀ ᴘʀᴇꜱꜱᴜʀᴇ ᴀᴄᴛɪɴɢ ᴏɴ ᴛʜᴇ ᴛʜɪɴ ʀᴜʙʙᴇʀ ᴡᴀʟʟꜱ ᴏꜰ ᴛʜᴇ ʙᴀʟʟᴏᴏɴ ꜰʀᴏᴍ ɪɴꜱɪᴅᴇ ᴄᴀᴜꜱᴇꜱ ᴛʜᴇ ʙᴀʟʟᴏᴏɴ ᴛᴏ ᴇxᴘᴀɴᴅ ᴀɴᴅ ɢᴇᴛ ɪɴꜰʟᴀᴛᴇᴅ.ᴛʜɪꜱ ᴀɪʀ ᴘʀᴇꜱꜱᴜʀᴇ ᴇxᴇʀᴛᴇᴅ ꜰʀᴏᴍ ɪɴꜱɪᴅᴇ, ɪɴꜰʟᴀᴛᴇꜱ ᴛʜᴇ ʙɪᴄʏᴄʟᴇ ᴛᴜʙᴇ, ꜱᴏ, ɪᴛ ɪꜱ ᴛʜᴇ ᴘʀᴇꜱꜱᴜʀᴇ ᴇxᴇʀᴛᴇᴅ ʙʏ ᴀɪʀ ꜰɪʟʟᴇᴅ ɪɴ ᴀ ʙɪᴄʏᴄʟᴇ ᴛᴜʙᴇ ᴡʜɪᴄʜ ᴋᴇᴇᴘꜱ ᴛʜᴇ ᴛᴜʙᴇ ᴛɪɢʜᴛ ᴀɴᴅ ᴍᴀᴋᴇꜱ ᴛʜᴇ ʙɪᴄʏᴄʟᴇ ᴛʏʀᴇ ꜰᴇᴇʟ ʜᴀʀᴅ..

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Answer 2

Answer:

The air pressure acting on the thin rubber walls of the balloon from inside causes the balloon to expand and get inflated. ... This air pressure exerted from inside, inflates the bicycle tube, So, it is the pressure exerted by air filled in a bicycle tube which keeps the tube tight and makes the bicycle tyre feel.

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