The discussion centers on the impact velocity of hailstones and their likelihood of melting upon hitting the Earth's surface. It is established that a minimum speed of 824 m/s is required for hailstones to melt due to kinetic energy transformation into heat. Participants debated whether this speed is realistic for hailstones upon impact, with insights on energy distribution during collisions. The consensus indicates that while high velocities can lead to melting, practical scenarios may not support such extreme speeds.
PREREQUISITESStudents studying physics, meteorologists, and anyone interested in the dynamics of hailstones and their impact on the environment.
Do you mean to say the hailstones would melt? Or wouldn't melt?dobbygenius said:
yes, the hailstones would melt...but I don't know how to elaborate on thatPeroK said:
You're right I just followed what the question saidPeroK said:
With what speed do hailstones hit the Earth?dobbygenius said:
the first question asked to find the minimum speed for it to melt when it hits the surface and I found it to be 824 m/s but other than that both the first and second question didn't give any more dataPeroK said:
Do you think hailstones hit the ground at ##824 \ m/s## or more? Have you ever seen hailstones?dobbygenius said:
Your reasoning is backwards. If it requires a very high velocity to melt the hailstones then that makes it relatively unlikely that hailstones would melt in practice.dobbygenius said:
Because most of the inelastic deformation would be in the ice.PeroK said:
That's a subtle assumption. It depends what the hailstones hit. Large hailstones may damage a car roof, for example, causing inelastic deformation of the metal.haruspex said:
No, I just looked it up, should've done it earlierPeroK said:
Right...thankyou!haruspex said:
