1. An advertisement claims that a particular automobile can "stop on a dime." What net force would actually be necessary to stop an automobile of mass 830 kg traveling initially at a speed of 39.0 km/h in a distance equal to the diameter of a dime, which is 1.8 cm?

2.

A firefighting crew uses a water cannon that shoots water at 28.0 m/s at a fixed angle of 52.0 above the horizontal. The firefighters want to direct the water at a blaze that is 12.0 m above ground level. How far from the building should they position their cannon? There are two possibilities ((11