the crate containing 40 bricks sits on a slopped convey belt which is used to raise the crate to the next level of the factory at a constant speed. When the conveyor was installed it was determined through safety checks that at an angle of 30 degrees the crate would begin to slip down the slope. The angle of the slopped convey belt is 25 degrees and at a heght of 12m. a. Calculate the length of the conveyor belt.