A powerlifter raises a 1000 N weight a distance of 2 meters. If this takes them 1.3 seconds to do, what is their power output? show work please if you can a 20,000 Watts
b 2000 Watts
c 1538 Watts
d 769 Watts

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?

Most short-period comets do not have randomly oriented orbits because

To a of 4 x hz is 1. 0. mm nm nm