Physics, asked by sushilaraj1523, 11 months ago

A hammer of mass 300 g, moving at 40m/s, strikes a nail. The nail stops the hammer in a very short time of 0.02 s. The force of the nail on the hammer is

Answers

Answered by Anonymous

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ᴍ = 500ɢ = 0.5 ᴋɢ

ᴠ = 0 ᴍ/s

ᴜ = 50 ᴍ/s

ᴛ = 0.01 s

F = ᴍ(ᴠ-ᴜ) / ᴛ

F = 0.5 (50-0) / 0.01

F = 0.5 x 50 x 100 / 1

F = 2500 N

Fᴏʀᴄᴇ ᴏғ ɴᴀɪʟ = 2500 N

Pʟᴢ ᴍᴀʀᴋ ᴀs Brainliest.... Lol

Answered by surjosekhar

ᴀɴsᴡᴇʀ.

ᴍᴀss ᴏғ ᴛʜᴇ ʜᴀᴍᴍᴇʀ, ᴍ = 500 ɢ = 0.5 ᴋɢ

ɪɴɪᴛɪᴀʟ ᴠᴇʟᴏᴄɪᴛʏ ᴏғ ᴛʜᴇ ʜᴀᴍᴍᴇʀ, ᴜ = 50 ᴍ/s

ᴛɪᴍᴇ ᴛᴀᴋᴇɴ ʙʏ ᴛʜᴇ ɴᴀɪʟ ᴛᴏ ᴛʜᴇ sᴛᴏᴘ ᴛʜᴇ ʜᴀᴍᴍᴇʀ, ᴛ = 0.01 s

ᴠᴇʟᴏᴄɪᴛʏ ᴏғ ᴛʜᴇ ʜᴀᴍᴍᴇʀ, ᴠ = 0 (sɪɴᴄᴇ ᴛʜᴇ ʜᴀᴍᴍᴇʀ ғɪɴᴀʟʟʏ ᴄᴏᴍᴇs ᴛᴏ ʀᴇsᴛ)

ғʀᴏᴍ ɴᴇᴡᴛᴏɴ’s sᴇᴄᴏɴᴅ ʟᴀᴡ ᴏғ ᴍᴏᴛɪᴏɴ:

ғᴏʀᴄᴇ, ғ = ᴍ(ᴠ-ᴜ) / ᴛ

= 0.5(0-50) / 0.01

= -2500 ɴ

ᴛʜᴇ ʜᴀᴍᴍᴇʀ sᴛʀɪᴋᴇs ᴛʜᴇ ɴᴀɪʟ ᴡɪᴛʜ ᴀ ғᴏʀᴄᴇ ᴏғ 2500 ɴ. ʜᴇɴᴄᴇ, ғʀᴏᴍ ɴᴇᴡᴛᴏɴ’s ᴛʜɪʀᴅ ʟᴀᴡ ᴏғ ᴍᴏᴛɪᴏɴ, ᴛʜᴇ ғᴏʀᴄᴇ ᴏғ ᴛʜᴇ ɴᴀɪʟ ᴏɴ ᴛʜᴇ ʜᴀᴍᴍᴇʀ ɪs ᴇϙᴜᴀʟ ᴀɴᴅ ᴏᴘᴘᴏsɪᴛᴇ, ɪ.ᴇ., +2500 ɴ.

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