Question

1. What is a normal force? Show it with an example.
2.Why is it necessary to separate contact force into a normal force and frictional force? Give reasons’

3. what is tension​

Answer 1

1.ᴛʜᴇ ɴᴏʀᴍᴀʟ ғᴏʀᴄᴇ ɪs ᴀɴ ᴇᴠᴇʀʏᴅᴀʏ ғᴏʀᴄᴇ ᴛʜᴀᴛ ɪs ғᴇʟᴛ ᴡʜᴇɴ ᴀ sᴜʀғᴀᴄᴇ ᴘᴜsʜᴇs ᴀɢᴀɪɴsᴛ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴛʜᴀᴛ ɪs ᴘʟᴀᴄᴇᴅ ᴏɴ ᴛʜᴀᴛ sᴜʀғᴀᴄᴇ. ғᴏʀ ᴇxᴀᴍᴘʟᴇ, ᴡʜᴇɴ ᴀ ʙᴏᴏᴋ ɪs ᴘʟᴀᴄᴇᴅ ᴏɴ ᴀ ᴛᴀʙʟᴇ, ᴛʜᴇ ɴᴏʀᴍᴀʟ ғᴏʀᴄᴇ ᴋᴇᴇᴘs ᴛʜᴇ ʙᴏᴏᴋ ғʀᴏᴍ ғᴀʟʟɪɴɢ ᴛʜʀᴏᴜɢʜ ᴛʜᴇ ᴛᴀʙʟᴇ.

2.ғʀɪᴄᴛɪᴏɴ ᴀʟᴡᴀʏs ᴀᴄᴛs ᴛᴏ ᴏᴘᴘᴏsᴇ ᴀɴʏ ʀᴇʟᴀᴛɪᴠᴇ ᴍᴏᴛɪᴏɴ ʙᴇᴛᴡᴇᴇɴ sᴜʀғᴀᴄᴇs. ʜᴇɴᴄᴇ ɪᴛ ɪs ɴᴇᴄᴇssᴀʀʏ ᴛᴏ sᴇᴘᴀʀᴀᴛᴇ ᴛʜᴇsᴇ ᴛᴡᴏ ғᴏʀᴄᴇs ᴀs ᴛʜᴇʏ ᴡᴏʀᴋ ɪɴ ᴏᴘᴘᴏsɪᴛᴇ ᴅɪʀᴇᴄᴛɪᴏɴ ɪɴ ᴀ sᴀᴍᴇ ʙᴏᴅʏ ᴀɴᴅ ᴍᴏᴠᴇᴍᴇɴᴛ ᴏғ ᴀ ʙᴏᴅʏ ᴅᴇᴘᴇɴᴅs ᴏɴ ᴛʜᴇᴍ

3.ᴛᴇɴsɪᴏɴ ɪs ᴅᴇsᴄʀɪʙᴇᴅ ᴀs ᴛʜᴇ ᴘᴜʟʟɪɴɢ ғᴏʀᴄᴇ ᴛʀᴀɴsᴍɪᴛᴛᴇᴅ ᴀxɪᴀʟʟʏ ʙʏ ᴛʜᴇ ᴍᴇᴀɴs ᴏғ ᴀ sᴛʀɪɴɢ, ᴀ ᴄᴀʙʟᴇ, ᴄʜᴀɪɴ, ᴏʀ sɪᴍɪʟᴀʀ ᴏɴᴇ-ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴄᴏɴᴛɪɴᴜᴏᴜs ᴏʙᴊᴇᴄᴛ, ᴏʀ ʙʏ ᴇᴀᴄʜ ᴇɴᴅ ᴏғ ᴀ ʀᴏᴅ, ᴛʀᴜss ᴍᴇᴍʙᴇʀ, ᴏʀ sɪᴍɪʟᴀʀ ᴛʜʀᴇᴇ-ᴅɪᴍᴇɴsɪᴏɴᴀʟ ᴏʙᴊᴇᴄᴛ; ᴛᴇɴsɪᴏɴ ᴍɪɢʜᴛ ᴀʟsᴏ ʙᴇ ᴅᴇsᴄʀɪʙᴇᴅ ᴀs ᴛʜᴇ ᴀᴄᴛɪᴏɴ-ʀᴇᴀᴄᴛɪᴏɴ ᴘᴀɪʀ ᴏғ ғᴏʀᴄᴇs ᴀᴄᴛɪɴɢ ᴀᴛ ...

Answer 2

Answer:

1.. All the conditions in Figure 1 apply. The normal force is an everyday force that is felt when a surface pushes against an object that is placed on that surface. For example, when a book is placed on a table, the normal force keeps the book from falling through the table.

Explanation:

3..In physics, tension is described as the pulling force transmitted axially by the means of a string, a cable, chain, or similar one-dimensional continuous object, or by each end of a rod, truss member, or similar three-dimensional object; tension might also be described as the action-reaction pair of forces acting at .