A 1.83 m-long aluminum "singing" rod is vertically balanced on the floor on one of its ends. Calculate the pressure on the ground exerted by the road due to the weight of the road. The density of Al is QUOTE 2.70×10³ kg/m3 and the diameter of the rod is 1.27 cm. A) 2.7 N/m² B) 8.4 N/m² C) 2.7×10⁴ N/m² D) 4.8×10⁴ N/m² E) 4.94×10³ N/m²

Question

Quizplus · Accepted Answer

To find the pressure, first calculate the volume of the rod using V = πr²h, where r = 0.0127/2 m and h = 1.83 m. Then, find the mass using mass = density × volume. The weight is mass × g (9.81 m/s²). Finally, pressure = weight / area, where area = πr².

A 183 M-Long Aluminum "Singing" Rod Is Vertically Balanced on the the Floor