How Is the Average Pressure of Hailstones on a Window Calculated?

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To calculate the average pressure exerted by hailstones on a window, the relevant formula is Pressure = Force/Area. The force can be determined by the change in momentum of the hailstones as they strike the window and bounce off. Since the hailstones have an average mass of 2g and a speed of 15m/s, the change in momentum must be considered, even if acceleration appears to be zero. The area of the window is given as 0.5m², which is essential for calculating pressure. Understanding the relationship between force and momentum change is crucial for solving this problem accurately.
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Homework Statement


During a hailstorm, hailstones with an average mass of 2g and a speed of 15m/s fall vertically down and strike a winshield angled at 45 degrees and bounce off at the same speed horizontally. The area of the window is .5m2 What is the average pressure they exert on the window?


Homework Equations





The Attempt at a Solution


So far this is what I've worked out:
Pressure = Force/Area
Force = ma but since there is no loss in velocity then that means that a=0 and the stones exert no force on the window?
 
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