Question

Определить массу, силу тяжести и вес в лифте,при разгоне вверх, с ускорением 5 м/с. Масса равна 50 кг.

Answer 1

Дано      m=50 кг        a=5 м/с2         m- ?     Fт- ?   P- ?

масса не зависит от ускорения       m=50 кг

сила тяжести не меняется    Fт=m*g=500 Н

P=m*g+m*a=50*15=750 Н

Answer 2

Масса везде одинакова=50кг
g(общее)=g+(-a)=10+5=15 м\с^2
Fт=ma=50*15=750H

Answer 3

Calculation of Mass, Weight, and Force of Gravity in an Elevator

To determine the mass, force of gravity, and weight in an elevator during upward acceleration with an acceleration of 5 m/s² and a mass of 50 kg, we can use the following formulas:

1. Mass (m): The given mass is 50 kg.

2. Force of Gravity (Fg): The force of gravity acting on an object is given by the formula Fg = m * g, where m is the mass and g is the acceleration due to gravity. In this case, we assume the acceleration due to gravity is approximately 9.8 m/s².

3. Weight (W): Weight is the force with which an object is pulled towards the center of the Earth. It is given by the formula W = m * g.

Let's calculate the values:

1. Mass (m): The given mass is 50 kg.

2. Force of Gravity (Fg): Fg = m * g = 50 kg * 9.8 m/s² = 490 N.

3. Weight (W): W = m * g = 50 kg * 9.8 m/s² = 490 N.

Therefore, the mass, force of gravity, and weight in the elevator during upward acceleration with an acceleration of 5 m/s² and a mass of 50 kg are as follows:

- Mass: 50 kg - Force of Gravity: 490 N - Weight: 490 N

Please note that the values of mass, force of gravity, and weight remain constant regardless of the acceleration of the elevator.