Question

distinguish between between contact and noncontact force

Answer 1

Contact force- Exerted by the bodies when they are in contact. Contact force always acts in the direction perpendicular to the plane of contact. Action-reaction pair are formed.
Ex- A block of mass 'm' kept on ground and earth exerts a contact force 'N' normal to the body.
ie. F=ma
 N = mg
(Reaction) (Action)

Non-contact force--Bodies don't come in contact. Experienced by bodies due to field (gravitational). Matter binding forces(Nuclear).
Information transmitting forces(electromagnetic).

Answer 2

ᴄᴏɴᴛᴀᴄᴛ ғᴏʀᴄᴇ ᴀʀᴇ ᴛʜᴏsᴇ ғᴏʀᴄᴇ ᴡʜɪᴄʜ ɪs ᴀᴘᴘʟɪᴇᴅ ɪɴ ᴄᴏɴᴛᴀᴄᴛ.ɪᴛ ɪs ᴀᴘᴘʟɪᴇᴅ ᴡʜᴇɴ ʙᴏᴅʏ ɪs ɪɴ ᴛᴏᴜᴄʜᴇᴅ.
ɪᴛ ɪs ᴀᴄᴛ ʙʏ ᴘᴜsʜɪɴɢ ᴇᴛᴄ.

ɴᴏɴ ᴄᴏɴᴛᴀᴄᴛ ғᴏʀᴄᴇ ᴀʀᴇ ᴛʜᴏsᴇ ғᴏʀᴄᴇ ᴡʜɪᴄʜ ɪs ᴀᴘᴘʟɪᴇᴅ ᴡɪᴛʜᴏᴜᴛ ɪɴ ᴄᴏɴᴛᴀᴄᴛ.ɪᴛ ɪs ɪɴ ᴡʜᴇɴ ʙᴏᴅʏ's ʀ ɴᴏᴛ ɪɴ ᴛᴏᴜᴄʜ.ɪᴛ ᴀᴄᴛs ʙʏ ɢʀᴀᴠɪᴛʏ , ʜᴇᴀᴛ ᴇɴᴇʀɢʏ , ᴍᴀɢɴᴇᴛ ᴇᴛᴄ.