A laborer wants to move crates containing bottles of olive oil from a truck to the ground by sliding themalong a ramp. The ramp is 6 m long and is at an angle of 25°. There is friction on the ramp for the firstcrate. The laborer doesn’t know that there is a small leak in one of the bottles. The leak leaves a layer ofoil on the ramp. The oil creates a frictionless surface for the second crate Wayne sends down the ramp. Atthe bottom of the ramp, the speed of the second crate (without friction) is 2.5 the speed of the first crate(with friction). Required:

Find the coefficient of kinetic friction.