A 270-g Mass Hangs From A String That Is Wrapped Around A Pulley, As Shown In The Figure. The Pulley Is Suspended In Such A Way That It Can Rotate Freely. When The Mass Is Released, It Accelerates Toward The Floor As The String Unwinds. Model The Pulley A

匿名用户 最后更新于 2021-12-01 19:31 物理类Physics

A 270-g mass hangs from a string that is wrapped around a pulley, as shown in the figure. The pulley is suspended in such a way that it can rotate freely. When the mass is released, it accelerates toward the floor as the string unwinds. Model the pulley as a uniform solid cylinder of mass 1.00 kg and radius 9.00 cm. Assume that the thread has negligible mass and does not slip or stretch as it unwinds.
Determine the magnitude a of the pulley's angular acceleration. Q = rad/s2 Determine the magnitude of the acceleration a of the descending weight. a= m/s2 Calculate the magnitude of the tension T in the string. T= N

已邀请: