3/115) In the design of a conveyor-belt system, small metalblocks are discharged with a velocity of 0.4m/s onto a ramp by theupper conveyor belt shown. If the coefficient of kinetic frictionbetween the blocks and the ramp is 0.3, calculate the angel θwhich the ramp must make with the horizontal so that the blockswill transfer without slipping to the lower conveyor belt moving atthe speed of 0.14m/s. Ans. θ=

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