Question

The horse power (H.P.), a pupular unit of power in the FPS units, is related to the SI Unit of power (the watt), as 

1 H.P. = 746 W 

[The FPS unit of force is the poundal;

Givern that 1 kg = 2.205 pound and

1 m = 3.28 feet] the relation between the FPS unit of power (= ft – poundal/s) and the HP is

(1) 1 HP = 17.7 × 10³ ft–poundal/s

(2) 1 HP = 550 ft–poundal/s

(3) 1 HP = 31.5 ft–poundal/s

(4) 1 HP = 41.03 × 10⁴ ft–poundal/s

Answer 1

(1) 1 HP = 17.7 × 10³ ft–poundal/s

We have power