Working in SI units, calculating power generated by ship movement and using the figures I gave above, 55000 tonnes (note, I’m using metric tonnes, 2200lbs, not long tons, 2240 lbs) and velocity of 22 knots = …22 x 1850 (metres in a nautical mile) / 3600 (seconds in 1 hour) = 55,000,000Kg x 9.81 (newtons per kg) x 11.3 m per sec = 6096,915,000 watts, or 6096 Mw.
The force generated, assuming a dead stop, would be mass(Kg) x velocity(m/sec) x 9.81(grav force, newtons/kg)/ 9.81 (Newtons/kg), or 55000000 x 11.3 x 9.81/ 9.81 = 651,500,000 kg.= 651,500 tonnes.
By comparison, a 1 ton car travelling at 60 mph (96 km/hr) would be: 1000 kg x 9.81 (g) x (96 x 1000/3600) = 1000 x 9.81 x 26.6 = 261600 watts, or 261.6 Kw, and the force generated in coming to a dead stop would be 1000 kg x 26.6 m/sec = 26600 Kg, or 26.6 tonnes.