According to the law of reflection, which statement must be true?

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

What is the measurement of how fast an object moves relative to a reference point?

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)