With what acceleration does the bar slide along an inclined plane with an inclination angle of 45 at a friction coefficient of 0.2?
| December 3, 2020 | education
According to Newton’s second law: Frav. = ma, => Since the tilt angle is 45 °, the projection of gravity on the axis is: F = mgcos45 ° So, on the OY axis: N = mgcos45 ° On the OX axis: mgcos45 ° – Ftr. = ma Since Ftr. = МN, then a = gcos45 ° (1 – M), substituting the numbers: a = 5.7m / s ^ 2
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