The terms on the left to the appropriate blanks on the right to complete the sen

Question

The terms on the left to the appropriate blanks on the right to complete the sentence. Raindrops: air resistance is a significant factor. We can assume that the drops reach terminal speed before hitting the ground. Bigger drops experience a downward gravitational force than small drops because they have more mass. However, bigger drops also experience a greater air resistance drag force because their cross-sectional area is larger. But these two effects do not grow at the same rate, the mass (and hence the downward force) grows with, while the cross-sectional area grows with Therefore, as the size of drops increases, the downward force grows faster than the upward force. So larger, more massive drops fall than smaller drops.

Explanation / Answer

A. Rain drops are not in free fall. Before reaching the surface of the earth the two forces gravitational force and drag force are equal So, rain drops have terminal velocity.

B. Bigger drops experience a greater downward gravitational force than the smaller drops because they have large mass.

C. However bigger drops also experience a greater upward air resistance drag force because their cross sectional area islarger but these two effects doesn't grow at the same rate ; the mass grows with r3 while cross sectional area grows with r2.

D. Therefore as the size of drop increases , the downward force goes faster than the upward force. So larger more massive force drops faster than the smaller drops.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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