A 6.5 kg block is on an incline with a coefficient of static friction of 0.50. The angle that the ramp makes with the horizontal is increased gradually, until the block begins to slide down the ramp. If you know that the coefficient of kinetic friction among the block and the plane is 0.35, discover the time it will take the block to slide down the ramp a distance of 0.85 m starting from rest.