A cardboard tube of 2.0 cm in diameter rolls without slipping down a ramp at 25 degrees above horizontal.

Moment of inertia for a cylinder is 12MR2

a) What causes the cardboard tube to roll along the ramp? Explain in paragraph

b) How fast is the tube moving translationally if it starts at rest, and then rolls down a vertical height of 0.45 m?

(4 points) a detail sketch of the problem

Part a) (6 points) Explain in detail paragraph

Part b) (10 points) Detail calculation to arrive at the result with all the units in detail calculation

up to 5 points only without all the units