Gravity and Air Resistance Quick Check

Question

connexus 10th grade physical science

all of these are correct as of 2/4/23 :)

1. What happens when a falling object reaches terminal velocity?
💗- it stops accelerating.

2. How does a falling object's surface area effect calculations of terminal velocity?
💗- The greater the object's surface area, the more air resistance it encounters.

3. Which is the equation for terminal velocity?
💗- Vt = √2w÷dACᵈ

4. A ball falls from a tall bridge. The ball has a mass of 0.15 kg. The air density is 1.225 kg/m³. The ball's surface area is 0.0026 m². The ball's coefficient of drag is 0.007. What is the ball's terminal velocity?
💗- 363 m/s

5. Hanna wants to calculate the terminal velocity of a typical meteorite just before it hits Earth. She researches meteorites at the library and on the internet. What information does she need to find?
💗- a typical meteorite's weight, surface area, and coefficient of drag; air density close to Earth.

hope this helped <3

Answer 1

100 percent correct tysm