Answer:
W = 3.15 · 10⁶ J
Explanation:
We know that power is calculated using the formula:
- P = W/t
- where P = power (W), W = work (J), and t = time (s)
We can derive a formula for work using this formula by multiplying t to both sides of the equation.
Let's convert 15 kW to W.
Let's convert 3.5 min to s.
Substitute these values into the formula for work and solve for W.
- W = Pt
- W = (15,000 W) · (210 s)
- W = 3,150,000 J
- W = 3.15 · 10⁶ J
This is the amount of work done by a 15 kW engine in 3.5 minutes.
