Question

ᴀ ᴍᴀɴ ᴏғ 60 ᴋɢ ɢᴀɪɴs 1000 ᴄᴀʟ ᴏғ ʜᴇᴀᴛ ʙʏ ᴇᴀᴛɪɴɢ 5 ᴍᴀɴɢᴏᴇs . ʜɪs ᴇғғɪᴄɪᴇɴᴄʏ ɪs 56 % . ᴛᴏ ᴡʜᴀᴛ ʜᴇɪɢʜᴛ ʜᴇ ᴄᴀɴ ᴊᴜᴍᴘ ʙʏ ᴜsɪɴɢ ᴛʜɪs ᴇɴᴇʀɢʏ..??

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Answer 1

Question:-

A man of 60kg gains 1000 Cal of heat by eating 5 mangoes. His efficiency is 56%. To what weight he can jump by using this energy?

Answer:

4m

Explanation:

Given :

• Mass of the man before eating mangos = 60kg

• After eating five mangoes he gain = 1000Cal = 1000*4.2 = 4200  [1cal  = 4.186]

• Efficiency = 56 % = 0.56

To Find :

• Height he can jump

Solution :

Q = mgh,

where m is the mass in kilograms,

g is the acceleration due to gravity (9.8 on Earth),

and h is the height above the ground in meters.

and Q is the sum of all heat transfer into and out of the system.

$\to \sf{} 4200 \times 0.56= 60 \times 9.8 \times height$

$\to\sf{} 2352=588h$

$\to \sf{} h =\dfrac{2352}{588}$

$\sf{}\to Height=4m$

Therefore,the height to which it reach is 4m

Answer 2

Answer:

Heya sathvika ♥️

Explanation:

✏️After eating 5 mangoes energy gain =1000Cal

Efficiency =5.6%

Energy can be utilized =Efficiency × 5

=560Cal

=2352J

Now, mgh=2352

h=60×9.82352=4m

✒️Hope it works ♥️☺️✌️...