Vector v¹, is 6.6 units long and points along the negative x axis. vector v² is 8.5 units long and points at +55° to the positive x axis.(a) what are the x and y components of each vector? (b) determine the sum v¹+v²(magnitude and angle).

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.