Super Fast Zipcars
My wife tweeted a post to @zipcarChicago about a recent bill. In a nutshell we were charged for 3,003 miles today for renting the commuter vehicle. https://twitter.com/queensuchnsuch/status/1056013294492938246?s=21 So being me... I thought “Oh maths!” Let’s see, the Honda CRV AWD has a curb weight of 3,421 lbs, and a 4 cylinder, 184 horsepower motor. When you weigh it, you don't actually get the mass, but the weight, which is the mass multiplied by the acceleration due to gravity, which is 32/feet/second2. If you measure the weight in pounds, divide that number by 32 feet/second2 to get the mass in units called slugs. The CRV is about 107 slugs. Now it's time to do an acceleration test to find how long it takes the car to reach a speed of 60 miles per hour from a standstill. Convert that final speed to feet/second and divide it by the time it took to attain that speed. That gives you the average acceleration. Now you have all you need to find the thrust developed by the en