Can a Household Hammer Shatter a Car Window?

[LouisDella]

A household hammer cannot shatter a car window; only a safety hammer equipped in the car can do so. Differences between a safety hammer and a household hammer: A safety hammer is an auxiliary escape tool designed for enclosed compartments, primarily used to break glass in emergencies for escape. The hammer can also be used to strike glass, and the blade at the end of the handle can cut seatbelts for escape. How to use a safety hammer: The safety hammer primarily utilizes its conical tip. Because the contact area of the pointed tip is very small, the pressure (not the force, but the force per unit area) exerted on the glass when striking it is extremely high, making it easy to puncture the film.