Question

Collision between objects is perfectly inelastic & mass of each block is 2kg, then
loss in kinetic energy of system will be :-

(1) 325 J
(3) 450 J
(2) 350 J
(4) 50 J​

Answer 1

ᴀɴsᴡᴇʀ :-

ᴀ ᴘᴇʀғᴇᴄᴛʟʏ ɪɴᴇʟᴀsᴛɪᴄ ᴄᴏʟʟɪsɪᴏɴ ᴏᴄᴄᴜʀs ᴡʜᴇɴ ᴛʜᴇ ᴍᴀxɪᴍᴜᴍ ᴀᴍᴏᴜɴᴛ ᴏғ ᴋɪɴᴇᴛɪᴄ ᴇɴᴇʀɢʏ ᴏғ ᴀ sʏsᴛᴇᴍ ɪs ʟᴏsᴛ. ɪɴ ᴀ ᴘᴇʀғᴇᴄᴛʟʏ ɪɴᴇʟᴀsᴛɪᴄ ᴄᴏʟʟɪsɪᴏɴ, ɪ.ᴇ., ᴀ ᴢᴇʀᴏ ᴄᴏᴇғғɪᴄɪᴇɴᴛ ᴏғ ʀᴇsᴛɪᴛᴜᴛɪᴏɴ, ᴛʜᴇ ᴄᴏʟʟɪᴅɪɴɢ ᴘᴀʀᴛɪᴄʟᴇs sᴛɪᴄᴋ ᴛᴏɢᴇᴛʜᴇʀ. ɪɴ sᴜᴄʜ ᴀ ᴄᴏʟʟɪsɪᴏɴ, ᴋɪɴᴇᴛɪᴄ ᴇɴᴇʀɢʏ ɪs ʟᴏsᴛ ʙʏ ʙᴏɴᴅɪɴɢ ᴛʜᴇ ᴛᴡᴏ ʙᴏᴅɪᴇs ᴛᴏɢᴇᴛʜᴇʀ.

50 J

ʀᴇɢᴀʀᴅs :-)