Answer:
4 hP
Explanation:
Power (P) is defined as the amount of work (W) over the change in time (t).
P = W / t
Work (W) is defined as force (F) times distance (d).
W = Fd
And finally, speed (v) is defined as distance (d) per time (t).
v = d / t
Using these three equations, we can show that power is equal to force times speed.
P = W / t
P = Fd / t
P = Fv
The power developed by the engine is:
P = (100 N) (30 m/s)
P = 3000 W
Converting Watts to horsepower:
P = 3000 W × (1 kW / 1000 W) × (1 hP / 0.75 kW)
P = 4 hP
