A cyclist travels at a speed of 21.6km/h. What is this speed in m/s?
A 0.021 m/s
B 0.36 m/s
C 6.0 m/s
D 21.6 m/s

1) what is the power in horsepower of a 100 watt light bulb? what is the power in kilowatts of a 200 horsepower engine? 2) if a cars engine is providing 3000 n of force to keep the car moving at 5 m/s, what is the engine’s effective power? 3) how many gallons of water will be pumped from a well 30 feet deep by a 1/2 hp engine in 1 minute? (1 gallon weighs 8.34 pounds)