Answer Happy

need help doing the sketch and the math
PHYSICS MOBILE PROJECT - Forces in rotational equilibrium OBJECTIVE: Design and construct an art mobile around a general theme using physics to calculate the mobile's rotational equilibrium (equal torques on each side of balancing arm). DIRECTIONS 1. Design a hanging mobile having a minimum of three freely-swinging horizontal arms. 2. Select the hanging items of the mobile. Plan to use wooden dowels or metal rods as horizontal arms. 3. Sketch the general plan of your mobile on paper. 4. Begin to construct your actual mobile. You are likely to achieve the best results by starting with the lowest level and working upward. I'd also recommend hanging bars from their center of mass (see calculation image below). 5. Create a data table (Example below). As you construct the element for one side of the arm, find the mass of the element in the mobile and record in your data sheet. 6. Measure the distance from the pivot point for the first element. Use the torque formula to determine the distance(s) of support strings for additional elements on the same arm and record in your data sheet. The goal is to have the torques of each arm balanced so there is no vertical rotation. Torque calculations should be included. 7. Continue to construct the mobile following your general plan. Record the mass, distance, and torques on your data table. HINTS • Use objects of moderate mass. • Do not use fragile or expensive objects. Handmade objects are acceptable. • Vary the distances of the objects to pivot points Plan ahead! Calculate carefully and accurately. Example Data Table: Arm 1 (Lowest arm) Pivot point: x cm from left end Object Mass (kg) Rod Mass 1 Weight (N) Position relative to pivot (m) Torque (Nm)