A solid disk wheel is rolling without slipping down an incline and is moving to

Question

A solid disk wheel is rolling without slipping down an incline and is moving to the right (and down) as viewed from the side The direction of rotation of the disk wheel is .The wheel's translational motion must be and the wheel's rotational motion must be . The friction force between the wheel and the ground is friction and must be directed . The disk wheel has a radius of 0.200 m and a mass of 3.00 kg, which is uniformly distributed throughout its volume. It is released from rest at a height of 1.35 m from bottom of the incline. Calculate its translational and rotational speed at the bottom of the incline. The disk wheel is now released from rest from the same pint along side a hoop. The hoop may or may not have the same radius and mass as the disk wheel. We may conclude that the disk wheel will arrive at the bottom the hoop. A second solid disk wheel is now raced against the first disk wheel. It is observed that the first disk wheel arrives at the bottom earlier than the second disk wheel. We may conclude that

Explanation / Answer

1)

the direction of rotation is (CLOCKWSIE) ,

down the incline

CLOCKWSIE

Static (as the wheel is rolling and for rolling the point of contact is always at rest)

upwards the incline.(it acts oposite to the direction of gravity acting on the wheel )

Please post the question 2 in another post :)

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