A belt of density of 1500 kg/m^3 and cross-sectional area 400 x 10^-6 m^2 transmits 120 kW power at 1800 rev/min through a pulley of diameter 1.6 m. The angle of lap between the belt and the pulley is 240degrees and μ = 0.2.
Determine:
3.1. The tensions and the maximum stress in the belt. (10)
3.2. The tensions if a grooved pulley with a groove angle of 50degrees . (8)
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