Question

Крапля води масою 0,1 г падае з даху будинку заввишки 36 м. Чому дорівнюва- ла б швидкість краплі наприкінці падіння, якби вона падала вільно?​

Answer 1

Швидкість тіла наприкінці вільного падіння можна обчислити за формулою V = sqrt(2gh), де g - прискорення вільного падіння, h - висота падіння. У вашому випадку g = 9.8 м/с², h = 36 м, тому V = sqrt(2 * 9.8 * 36) ≈ 26.4 м/с. Таким чином, швидкість краплі наприкінці падіння дорівнює близько 26.4 м/с.

sqrt це знак кореня квадратного

Answer 2

Ответ:

26,8 м/c;

Объяснение:

m=0,1 г=0,0001 kг;

h=36 м;

Vm    ?      Ek=Ep; m*Vm²/2=m*g*h; Vm=√(2*g*h)=√(2*10*36)=26,8 м/c

Answer 3

The Speed of a Falling Water Droplet

When a water droplet falls from a height, its speed increases due to the force of gravity. The speed at which the droplet falls depends on various factors, such as the height from which it falls and the presence of air resistance. In this case, we are given that the droplet falls from a height of 36 meters and has a mass of 0.1 grams.

To determine the speed of the droplet at the end of its fall, assuming it falls freely without any air resistance, we can use the principle of conservation of energy. According to this principle, the total mechanical energy of the droplet remains constant throughout its fall.

At the start of the fall, the droplet has potential energy due to its height above the ground. As it falls, this potential energy is converted into kinetic energy, which is the energy of motion. At the end of the fall, when the droplet reaches the ground, all of its potential energy is converted into kinetic energy.

The formula to calculate the speed of an object falling freely is given by the equation:

v = √(2gh)

Where: - v is the final velocity (speed) of the droplet - g is the acceleration due to gravity (approximately 9.8 m/s² on Earth) - h is the height from which the droplet falls

Substituting the given values into the equation, we can calculate the speed of the droplet at the end of its fall:

v = √(2 * 9.8 * 36) m/s

Calculating this expression, we find that the speed of the droplet at the end of its fall, if it falls freely without air resistance, is approximately 26.8 m/s.

Please note that this calculation assumes ideal conditions, without considering factors such as air resistance or other external forces that may affect the actual speed of the falling droplet.