Question

Тело двигалось по горизонтальной поверхности со скоростью 10 м/с Через 10 сек под действием некоторой силы оно остановилось. определить коэфициэнт трения поверхности ?

Answer 1

V=V0-a*t
V=0
a=V0/t=10/10=1 м/с2
a=u*m*g/m=u*g
u=a/g=1/10=0,1

Answer 2

Calculation of the Coefficient of Friction

To determine the coefficient of friction of the surface, we can use the equation of motion for an object moving on a horizontal surface. The equation is as follows:

F = μN

Where: - F is the force of friction - μ is the coefficient of friction - N is the normal force

In this case, the body was initially moving with a velocity of 10 m/s and came to a stop after 10 seconds under the influence of some force. We need to find the coefficient of friction.

To find the normal force, we need to consider that the body is on a horizontal surface. In this case, the normal force is equal to the weight of the body, which can be calculated using the formula:

N = mg

Where: - m is the mass of the body - g is the acceleration due to gravity (approximately 9.8 m/s^2)

Unfortunately, the mass of the body is not provided in the question. Therefore, we cannot calculate the coefficient of friction without this information.

If you can provide the mass of the body, I would be happy to help you calculate the coefficient of friction.