Question

Шайба скользит по гладкой поверхности с ускорением -2м/с2. Чему равен коэффициент трения между шайбой и поверхностью

Answer 1

Mmg=ma, где М-коэффициент трения. Отсюда М= а/g=0.2

Answer 2

Coefficient of Friction between the Puck and the Surface

To determine the coefficient of friction between the puck and the surface, we can use the equation of motion for an object with constant acceleration. The equation is:

v^2 = u^2 + 2as

Where: - v is the final velocity of the puck - u is the initial velocity of the puck - a is the acceleration of the puck - s is the distance traveled by the puck

In this case, the puck is sliding on a smooth surface with an acceleration of -2 m/s^2. Since the surface is smooth, there is no friction acting on the puck. Therefore, the initial velocity of the puck is 0 m/s.

Using the equation of motion, we can rearrange it to solve for the distance traveled by the puck:

s = (v^2 - u^2) / (2a)

Substituting the given values, we have:

s = (0^2 - u^2) / (2 * (-2))

Simplifying further:

s = -u^2 / (-4) s = u^2 / 4

Since the puck starts from rest, the initial velocity u is 0 m/s. Therefore, the distance traveled by the puck is also 0 m.

Based on the information provided, we can conclude that the coefficient of friction between the puck and the surface is 0.