Question

Вантаж масою 50кг рухається по горизонтальній поверхні з прискоренням 0,8м/с під дією сили 70Н. Визначте коефіцієнт тертя.

Answer 1

Відповідь:

Пояснення:

Answer 2

Calculation of the Coefficient of Friction

To determine the coefficient of friction in this scenario, we can use Newton's second law of motion, which states that the net force acting on an object is equal to the product of its mass and acceleration:

Net force = mass × acceleration

In this case, the net force acting on the object is the difference between the applied force and the force of friction:

Net force = Applied force - Force of friction

The force of friction can be calculated using the equation:

Force of friction = coefficient of friction × Normal force

where the normal force is the force exerted by the surface on the object perpendicular to the surface.

Given: - Mass of the object (m) = 50 kg - Acceleration (a) = 0.8 m/s^2 - Applied force (F) = 70 N

We need to find the coefficient of friction (μ).

To find the normal force, we can use the equation:

Normal force = mass × gravitational acceleration

where the gravitational acceleration is approximately 9.8 m/s^2.

Let's calculate the normal force first:

Normal force = 50 kg × 9.8 m/s^2

Now, we can calculate the force of friction:

Force of friction = μ × Normal force

Since we know the net force acting on the object, we can rearrange the equation to solve for the coefficient of friction:

Net force = Applied force - Force of friction

Substituting the values we have, we get:

70 N = Applied force - (μ × Normal force)

Now, we can solve for the coefficient of friction (μ).

Let's perform the calculations.