You want to use a rope to pull a 109kg box up a plane inclined 30° above the horizontal. the coefficient of kinetic friction is 0.42. if the rope pulls parallel to the incline, what force do you need to exert on the rope to pull the box at a constant velocity?

What is the order of the moon, earth, and sun in a lunar eclipse and a solar eclipse?

Aplayground merry-go-round has a radius of 4.6 m and a moment of inertia of 200 kg-m2 and turns with negligible friction about a vertical axle through its center. a child applies a 26.0 n force tangentially to the edge of the merry-go-round for 15.0 seconds. if the merry-go-round is initially at rest, how much work did the child do on the merry-go-round?

Ashot putter releases the shot some distance above the level ground with a velocity of 12.0 m/s, 51.0 ∘above the horizontal. the shot hits the ground 2.08 s later. you can ignore air resistance. how far did she throw the shot?