Motion equation of object is how long did it move until it stops? (i think it is projectile motion, i'm not sure.)a) 5 sec b) 0,3 secc) 0,4 secd) 4 sece) 2 sec

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)