Question

why rolling friction is less than sliding friction​

Answer 1

Answer:

Sliding friction is the force resisting the motion when a body slides on a surface. The force of friction depends on the area of contact between the two surfaces. As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction

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Answer 2

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ʀᴏʟʟɪɴɢ ꜰʀɪᴄᴛɪᴏɴ ɪꜱ ʟᴇꜱꜱ ᴛʜᴀɴ ꜱʟɪᴅɪɴɢ ꜰʀɪᴄᴛɪᴏɴ ʙᴇᴄᴀᴜꜱᴇ ɪɴ ᴏʀᴅᴇʀ ꜰᴏʀ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴛᴏ ʀᴏʟʟ, ᴛʜᴇ ꜰᴏʀᴄᴇ ᴏꜰ ꜰʀɪᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ɪᴛ ᴀɴᴅ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ ᴍᴜꜱᴛ ʙᴇ ʟᴀʀɢᴇ ᴇɴᴏᴜɢʜ ᴛᴏ ᴋᴇᴇᴘ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ꜰʀᴏᴍ ɢʟɪᴅɪɴɢ.

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