Answer:
Explanation:
An 80kg person tries to lose weight by climbing a mountain to burn the equivalent of a large slice of a rich chocolate cake (700kcl). How high should you climb?
Given that,
A person of mass
M = 80kg
The person is climbing a stair case and he burn an energy of 700 kcl
We know that 1kcl = 4184J
Then, 700kcl = 700 × 4184J
700kcl = 2.9288 × 10^6 J
We want to find height of stairs the person will climb when he Loss 700kcl. The energy he burns will be converted to the potential energy
P.E is calculated using
P.E = mgh
Where
m is mass in kg
g is gravitational constant g = 9.81m/s2
h is the height of stairs he climb in metre
Then,
P.E = energy burn
mgh = 700kcl
80 × 9.81 × h = 2.9288 × 10^6
h = (2.9288 × 10^6) / (80 × 9.81)
h = 3731.91m
So, the person will climb 3731.91m before he losses 700kcl
In espanyol
Dado que,
Una persona de masa
M = 80 kg
La persona está subiendo una escalera y quema una energía de 700 kcl.
Sabemos que 1kcl = 4184J
Entonces, 700kcl = 700 × 4184J
700kcl = 2.9288 × 10 ^ 6 J
Queremos encontrar la altura de las escaleras que la persona subirá cuando pierda 700kcl. La energía que quema se convertirá en energía potencial.
P.E se calcula utilizando
P.E = mgh
Dónde
m es masa en kg
g es constante gravitacional g = 9.81m / s2
h es la altura de las escaleras que sube en metros
Entonces,
P.E = quema de energía
mgh = 700kcl
80 × 9.81 × h = 2.9288 × 10 ^ 6
h = (2.9288 × 10 ^ 6) / (80 × 9.81)
h = 3731.91m
Entonces, la persona subirá 3731.91m antes de perder 700kcl
