A bar with a mass of m1 = 200 g moves along an inclined plane with an angle of inclination of 30 °.

A bar with a mass of m1 = 200 g moves along an inclined plane with an angle of inclination of 30 °. It is connected by a thread thrown over a stationary block with a load of mass m2 = 100 g. Determine the acceleration with which the loads move and the tension force of the thread if: a) the bar moves without friction; b) the coefficient of friction of the bar on the inclined plane is 0.1.

Decision:
a) am1 = m3g
0.2a = 1
a = 5 m / s ^ 2
b) am1 – Ftp = m2g
0.2a-0.1 * 0.2 * 10 = 1
0.2a-0.2 = 1
0.2a = 1.2 a = 6 m / s ^ 2
Answer: 5 m / s ^ 2, 6 m / s ^ 2