Hi, I need your help to solve two problems.

PROBLEM ONE:

Torque and Angular Acceleration - Seesaw - Calculations (for short) 1of2 > MR Review In this problem, you will practice applying this formula to several situations involving angular acceleration. In all of these situations, two objects of masses m; = 3.7 kg and my = 2.6 kg are attached to a seesaw. The seesaw is made of a bar that has length [ = 6.0 m and is pivoted so that it is free to rotate in the vertical plane without friction.Assume that the Learning Goal: pivot is attached to the center of the bar. To understand and apply the formula 7 = I to rigid objects rotating about a fixed axis. The magnitude of the gravitational acceleration is g = 9.80 m/s2 To find the acceleration a of a particle of mass m, we use Newton's second law: F'net = ma, where Fey is the net force acting on the particle.To find the angular acceleration of a rigid object rotating about a - fixed axis, we can use a similar formula: Tyet = I, where Tpet = Z Tis the net torque acting on the object and I is its moment of inertia. Figure 1o0f2 > my "y PartA Assume that the mass of the swing bar, as shown in the figure, is negligible.(Figure 1) Find the magnitude of the angular acceleration c of the seesaw. Express your answer numerically, keep 3 digits after the decimal point, in rad/s? View Available Hint(s) angular acceleration o= rad/s* magnitude ST Previous Answers % Incorrect; Try Again; 5 attempts remaining Part B Torque and Angular Acceleration - Seesaw - Calculations (for short) Now consider a similar situation, except that now the swing bar itself has mass mbar = 2.1 kg . The center of the mass of the bar is at its center, where the pivot is located. ( Figure 2) Find the magnitude of the angular acceleration a of the seesaw. Express your answer numerically, keep 3 digits after the decimal point, in rad/s2 View Available Hint(s) 1 1 121 2 AED 0 :1 ? new case swing bas has mass a = rad/ $2 SubmitA Bar Suspended by Two Vertical Strings - Calculations - Self Assessment