Mathematics, 07.07.2020 09:01, annrawcliffe

Coal is pouring from a high conveyor belt onto a conical pile. The conical pile has a semi-vertical angle of 30°, and at time t the radius of the base is r. Find the height of the cone in terms of r, and hence show that the volume V of the cone is

V=(pi x r^3 x root 3)/ 3

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Coal is pouring from a high conveyor belt onto a conical pile. The conical pile has a semi-vertical...