Question

Лифт движется вниз с ускорением 3 м\с ^2 . Находящийся в нем человек имеет вес 350 H . найти массу человека и его вес на земле

Answer 1

Дано
Р=350 Н
а=3,0 м/с²
g=10 м/с²
m-?
P1-?
P1=mg
ma=mg-P   На тело∴ 2 силы Р=N сила натяжения каната направлена вверх, сила тяжести mg направлена вниз , и ускорение а направлено вниз Ось ОХ направим тоже вниз. Проектируем все на ось ОХ имеем    ma=mg-P   m=P/(g-a)   Дерзай   Вес на земле равен силе тяжести Р=mg

Answer 2

Calculation of the Person's Mass and Weight

To find the mass of the person and their weight on Earth, we need to use the following information:

- The lift is moving downwards with an acceleration of 3 m/s^2. - The person in the lift has a weight of 350 H.

Let's break down the problem step by step:

Step 1: Find the mass of the person in the lift. We can use Newton's second law of motion, which states that the force acting on an object is equal to the mass of the object multiplied by its acceleration. In this case, the force acting on the person is their weight, and the acceleration is the acceleration of the lift.

Weight = Mass × Acceleration due to gravity

The weight of the person is given as 350 H. Since we are looking for the mass, we can rearrange the equation:

Mass = Weight / Acceleration due to gravity

The acceleration due to gravity on Earth is approximately 9.8 m/s^2.

Step 2: Find the weight of the person on Earth. The weight of an object is the force with which it is pulled towards the center of the Earth. On Earth, the weight of an object is equal to its mass multiplied by the acceleration due to gravity.

Weight on Earth = Mass × Acceleration due to gravity

Now let's calculate the mass and weight of the person:

Mass = 350 H / 9.8 m/s^2 Weight on Earth = Mass × 9.8 m/s^2

Calculating the values:

Mass = 35.71 kg Weight on Earth = 350 H

Therefore, the mass of the person is 35.71 kg, and their weight on Earth is 350 H.

Please note that the given search results did not provide any relevant information for this specific calculation. However, the calculation is based on well-established principles of physics.