Select the choice that accurately describes the modality of the following statement:
The area of a square is equal to the sum of the area of two triangles.

a. Metaphysically necessary
b. Metaphysically contingent
c. Metaphysically impossible
d. None of the above

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.