Jacob's family celebrates with him as he jumps with both feet together. jacob is likely (2 points)

one year old

two years old

three years old

four years old

A-of 75 cm by cm by 17.5 cm up. of is 2 kg a , in ,if it is in , kg/?

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?

Acar drives toward the right over the top of a hill, as shown below. which arrow represents the centripetal acceleration? w x y z