Although the altitude3 may vary considerabley, hailstonesaometimes originate aro

Question

Although the altitude3 may vary considerabley, hailstonesaometimes originate around 500 m ( about 1500 ft ) above theground. a) neglecting air drag, how fast will these hailstones bemoving when they reach the ground, assuming that they started fromrest? Express your answer in m./s and in mph.    v = m/s b) v = mph c) From your own experience, are hailsotine actuallyfalling that fast when they reach the ground? Why not? What has happened to maost of the initial potiential energy? Although the altitude3 may vary considerabley, hailstonesaometimes originate around 500 m ( about 1500 ft ) above theground. a) neglecting air drag, how fast will these hailstones bemoving when they reach the ground, assuming that they started fromrest? Express your answer in m./s and in mph.    v = m/s b) v = mph c) From your own experience, are hailsotine actuallyfalling that fast when they reach the ground? Why not? What has happened to maost of the initial potiential energy?

Explanation / Answer

Given: h = 500 m ˜ 1500 ft. f = ma a = g -- KE = 1/2mv^2 PE = mgh -- Hailstone falling from height h: 1/2mv^2 = mgh v = (2gh) v = 99 m/s ˜ 99*2.24 = 222 mph -- From experience, no the hailstones are not actually fallingthat fast. And most of the and the initial PE givenby mgh is lost as the hailstone loses mass. -- Hope this helps.

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.