A solid is 8 cm tall,9 cm wide and 0.5 cm thick . It has a density of 6.5 g/cm^3. What is it’s mass?

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?

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

What is a good example of instantaneous speed