A spinning roulette wheel has an initial angular velocity of 78.1 rad/s. if the wheel speeds up for 15.7 s with an angular acceleration of 0.8 rad/s2
what is the angular displacement during this time?

Need in all of themmm only answer if you know pls

Which of the following is an example of units for speed

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?