A boy and a girl, each of the weight 400 N climb up a rope through a height of 8 m. We name the girl as name KAYNAT and the boy as XYZ. KAYNAT takes 20 seconds and XYZ takes 50 seconds to accomplish the task.
What is the power expended by each ???
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ᴛʜᴇʀᴇ ᴀʀᴇ ᴛᴡᴏ ɢɪʀʟs, ʙᴏᴛʜ ᴛᴀᴋᴇ ʀᴇsᴘᴇᴄᴛɪᴠᴇ ᴛɪᴍᴇ ᴛᴏ ᴄʟɪᴍʙ ᴜᴘ ᴀ ʀᴏᴘᴇ ᴛʜʀᴏᴜɢʜ ᴀ ʜᴇɪɢʜᴛ ᴏғ 8 ᴍ, ᴛʜɪs sʜᴏᴡs ᴛʜᴇʏ ᴄᴏᴍᴘʟᴇᴛᴇᴅ ᴛʜᴇ ᴘᴀʀᴛɪᴄᴜʟᴀʀ ᴛᴀsᴋ ʙᴜᴛ ɪɴ ᴠᴀʀɪᴀʙʟᴇ ᴛɪᴍᴇ ᴘᴇʀɪᴏᴅ. ᴛʜᴇʏ sʜᴀʀᴇ sᴀᴍᴇ ᴡᴇɪɢʜᴛ ᴡʜɪᴄʜ ɪs 400ɴ.
ᴘᴏᴡᴇʀ ɪs ᴅᴇғɪɴᴇᴅ ᴀs ʀᴀᴛᴇ ᴏғ ᴅᴏɪɴɢ sᴏᴍᴇ ᴡᴏʀᴋ ᴏʀ ᴀᴛ sᴏᴍᴇ ʀᴀᴛᴇ ᴛʀᴀɴsғᴇʀ ᴇɴᴇʀɢʏ.
ᴘᴏᴡᴇʀ = ᴡ/ᴛ ᴏʀ ᴇ/ᴛ
ᴡʜᴇʀᴇ ᴡ ᴇxᴘʀᴇssᴇs ᴡᴏʀᴋ ᴅᴏɴᴇ ʙʏ ɢɪʀʟs – ᴀ ᴀɴᴅ ʙ, ᴛ ᴅᴇɴᴏᴛᴇs ᴛɪᴍᴇ ʜᴀs ʙᴇᴇɴ ᴛᴀᴋᴇɴ ʙʏ ɢɪʀʟs ᴛᴏ ᴄʟɪᴍʙ ᴜᴘ ᴀ ʀᴏᴘᴇ. ɪᴛ ɪs ᴄᴀʟᴄᴜʟᴀᴛᴇᴅ ɪɴ ᴡᴀᴛᴛ(ᴡ).
maine que pucha but delete kr dia
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the power of the girl and boy is 160 and 64.............
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