Answer:
3.14946 rad/s
Explanation:
= Intial moment of inertia
= Final moment of inertia
= Initial angular velocity
= Final angular velocity = 

In this system the angular momentum is conserved

The angular velocity when the diver left the board is 3.14946 rad/s
Answer:
By using the Physical property we can tell the difference between matter and mass
Explanation:
Answer:
Explanation:
A positive v time graph is a velocity graph. If the position/time is negative, then the slope of the line is negative. If the line is indicative of the velocity, which it is, that means that the velocity is negative (decreasing). The first choice is the one you want.