Question

Если модуль всех сил действующих на тело равен 6Н,то тело движется с ускорением 2м/с .Найти вес этого тела когда оно покоится на земле.

Answer 1

Как я думаю,по формуле F=ma ⇒m=F/a.
m=3 кг.⇒P=mg.
P=3×9,8=29,4.
Ответ:29,4(ну, если хочешь ,можешь округлить)

Answer 2

Calculation of Weight when the Body is at Rest

To find the weight of the body when it is at rest on the ground, we need to 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 acceleration is given as 2 m/s² and the force acting on the body is 6 N.

Using the formula F = ma, we can rearrange it to solve for mass (m):

F = ma

Given: Force (F) = 6 N Acceleration (a) = 2 m/s²

Substituting the given values into the formula, we get:

6 N = m * 2 m/s²

Simplifying the equation, we find:

m = 6 N / 2 m/s² = 3 kg

Therefore, the mass of the body is 3 kg.

To find the weight of the body when it is at rest on the ground, we can use the formula:

Weight = mass * gravitational acceleration

The gravitational acceleration on Earth is approximately 9.8 m/s².

Substituting the values, we get:

Weight = 3 kg * 9.8 m/s² = 29.4 N

Therefore, the weight of the body when it is at rest on the ground is approximately 29.4 Newtons.