Question

3) List the factors affecting friction.
4) Friction is a necessary evil. Give 3 examples.
5) Powder is sprinkled on the carom. Give reason.​

Answer 1

3) ғʀɪᴄᴛɪᴏɴᴀʟ ғᴏʀᴄᴇ ᴏɴ ᴀɴ ᴏʙᴊᴇᴄᴛ ɪɴ ᴀ ғʟᴜɪᴅ ᴅᴇᴘᴇɴᴅs ᴏɴ ɪᴛs sᴘᴇᴇᴅ ᴡɪᴛʜ ʀᴇsᴘᴇᴄᴛ ᴛᴏ ғʟᴜɪᴅ ᴀɴᴅ ᴏɴ ᴛʜᴇ sʜᴀᴘᴇ ᴏғ ᴛʜᴇ ᴏʙᴊᴇᴄᴛ ᴀɴᴅ ɴᴀᴛᴜʀᴇ ᴏғ ᴛʜᴇ ғʟᴜɪᴅ.

4) ᴛʜᴇ ᴇxᴀᴍᴘʟᴇs ᴛᴏ ɪʟʟᴜsᴛʀᴀᴛᴇ ᴛʜᴀᴛ ғʀɪᴄᴛɪᴏɴ ɪs ᴀ ɴᴇᴄᴇssᴀʀʏ ᴇᴠɪʟ ᴀʀᴇ:

• ɪғ ғʀɪᴄᴛɪᴏɴ ᴡᴇʀᴇ ᴀʙsᴇɴᴛ, ᴡᴇ ᴡᴏᴜʟᴅ ɴᴏᴛ ʙᴇ ᴀʙʟᴇ ᴛᴏ ᴡᴀʟᴋ.
• ғʀɪᴄᴛɪᴏɴ ɪs ɴᴇᴄᴇssᴀʀʏ ᴛᴏ ʙᴜʀɴ ᴀ ᴍᴀᴛᴄʜsᴛɪᴄᴋ.
• ɪᴛ ɪs ᴅᴜᴇ ᴛᴏ ғʀɪᴄᴛɪᴏɴ ᴛʜᴀᴛ ᴡᴇ ᴄᴀɴ ᴡʀɪᴛᴇ ᴏɴ ᴀ ʙᴏᴀʀᴅ ʙʏ ᴀ ᴄʜᴀʟᴋ.

5) ᴡᴇ sᴘʀɪɴᴋʟᴇ ᴘᴏᴡᴅᴇʀ ᴏɴ ᴄᴀʀʀᴏᴍ ʙᴏᴀʀᴅ ᴛᴏ ᴍᴀᴋᴇ ᴛʜᴇ sᴜʀғᴀᴄᴇ ᴏғ ᴛʜᴇ ʙᴏᴀʀᴅ sᴍᴏᴏᴛʜ. ᴛʜɪs ʀᴇᴅᴜᴄᴇs ᴛʜᴇ ғʀɪᴄᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ ᴛʜᴇ sᴜʀғᴀᴄᴇ ᴏғ ᴛʜᴇ ᴄᴀʀʀᴏᴍ ʙᴏᴀʀᴅ, ᴛʜᴇ sᴛʀɪᴋᴇʀ ᴀɴᴅ ᴛʜᴇ ᴄᴏɪɴs. ᴀs ᴀ ʀᴇsᴜʟᴛ, ᴛʜᴇ ᴄᴏɪɴs ᴀɴᴅ ᴛʜᴇ sᴛʀɪᴋᴇʀ ᴄᴀɴ ᴍᴏᴠᴇ ᴇᴀsɪʟʏ ᴏɴ ᴛʜᴇ ᴄᴀʀʀᴏᴍ ʙᴏᴀʀᴅ.

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Answer 2

Explanation:

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