Answer:
[tex]E = 1119000\ joules[/tex]
Explanation:
Given:
[tex]1\ Hp = 746\ watt[/tex]
time (t = 10.0 sec)
power = 150 Hp
We need to find the energy transformed by a 150 Hp engine in 10 s.
Solution:
First we convert 150 Hp in watt.
[tex]1\ Hp = 746\ watt[/tex]
[tex]150\ Hp = 150\times 746\ watt[/tex]
[tex]150\ Hp = 111900\ watt[/tex]
So, power (p = 111900 watt)
We know that, if we multiply power by time, we get energy transform by engine.
[tex]P = \frac{E}{t}[/tex]
[tex]E = P\times t\ joule[/tex] -----------(1)
Where:
P ⇒ power.
E ⇒ Energy.
t ⇒ time.
Substitute p = 111900 watt and t = 10 s in equation 1.
[tex]E = 111900\times 10[/tex]
[tex]E = 1119000\ joules[/tex]
Therefore, a 150 Hp engine could transform 1,119,000 joules energy in 10 s.
