In general, how long does it take for a raindrop to fall from the clouds to the ground?

Let's calculate how long it will rain under the lowest clouds Stratocumulus: low-level shingle-like clouds that usually cover the entire sky. The clouds are thin and sunlight can pass through.

h=1 2gt 2 2500=1 2* t=71 s If the ground temperature is not high and there is no strong air current, then the rain will fall for about 1 minute, because it will be reduced to an air resistance value.

In order to calculate the time it takes for raindrops to fall from the clouds to the ground, we need to know the height of the clouds and the ground, as well as the acceleration due to gravity.

The height of the known clouds: 5000 m.

The height of the known ground: 0 m.

Based on the height difference = cloud height - ground height, the height difference in which raindrops fall can be calculated:

5000 - 0 = 5000 meters.

Known acceleration due to gravity: 2 meters and seconds

5000 = seconds.

Converted to hours, it takes hours for raindrops to fall from clouds to the ground.

Rainy clouds are about 1000-2000 meters above the ground. Clouds can be divided into three main categories: cumuliform clouds, stratiform clouds, and undulating clouds. Each category is divided into different subcategories, and the height of different clouds from the ground is different.

1. Cumulus cumuliformis: generally divided into Cumulus paticus and Cumulus congestus.

and Cumulonimbus clouds. Cumulus pale clouds are generally around 2000-3000 meters in height and do not rain; Cumulus congestus clouds are generally around 1500-2000 m, and showers are likely to occur, but not much; The height of cumulonimbus clouds is very low, it may be less than 1000 meters at an altitude, and it generally occurs often in summer or in the south of our country, and the rainfall is large, but because the range of the cloud is not large, it is mostly vibrational rainfall.

2. Stratiform clouds: divided into altostratus and stratocumulus.

Nimbostratus and Cirrocumulus.

Cirrocumulus clouds are the highest, above 3000 meters, followed by altostratus, which can also reach about 3000; Stratocumulus clouds are relatively low and do not produce rainfall; Nimbostratus clouds vary in height depending on the situation, and generally the cloud layer is thick, the cloud height is low, and it produces continuous heavy rainfall.

The general height is around 1500 meters.

3. Undulating clouds: caused by the instability of the upper-air current, the height is not fixed, hovering at an altitude of about 1500-2000 meters, which can produce showers.

Thank you, teacher, for seeing it, I'm sorry that the culture is limited.

When the raindrops fall from the clouds to the ground, the gravity is greater than the resistance, and the direction of the resultant force is downward, so the speed is getting faster and faster, but according to "the greater the speed of the object, the greater the air resistance", it can be seen that the raindrops are subjected to the resistance of rolling at this time, and when the residual resistance is equal to the gravity, the resultant force is 0, and it begins to move at a uniform speed

Therefore, the answer is: first accelerate the fall, and then fall at a uniform speed

Your questions are as follows:

The buoyancy and air resistance of raindrops falling is not a contribution. The buoyancy experienced by the raindrops falling, as long as the size of the raindrops, the air buoyancy must be a fixed value according to Archimedes' law. The raindrop is varied by the change in the force of the air resistance with the change in the velocity of the raindrop.

When raindrops fall, buoyancy and drag are rising in a straight line.

Hope to help you, if in doubt, you can ask?

I wish you progress in your studies and to the next level! （

Freefall movement. s=, take g=

T = is obtained, and the velocity of the fall to the ground v=gt=

Any falling motion without resistance is free fall, his initial velocity is zero, just use the formula, h=(1 2)gt 2, the time will come out, v=gt, the speed will come out.