Reference no: EM132574125

-When riding your bicycle one day, you notice a toddler standing in the street in the path of a speeding car, (whose teen driver is text messaging on a cell phone while trying to shuffle the latest Justin Bieber album that they downloaded illegally using BitTorrent the night before), and clearly doesn't notice the toddler. Still on your bike, you ride in front of the car, grabbing the toddler in one hand, saving her from certain death. If the combined mass of you and the bicycle is 95 kg, the toddler has a mass of 20 kg, and you are initially traveling at 25 m/s, what is your final velocity after you have grabbed the toddler? Round to the nearest tenth and include units.

-A 12,600kg railroad car travels alone on a horizontal track with a constant speed of 18.0m/s. A 5,350kg load, initial at rest, is dropped onto the moving railroad car. What will be the car's new speed? Round to one decimal place and include units.