Object A moves toward Object B. Object B has twice the mass of Object A but is not moving. After the impact, the objects lock together in a perfectly inelastic collision. What is the fraction of the initial Kinetic Energy that remains?

When a book falls from a shelf to the ground without anyone pushing on it, no work is done on the book. true or false

What is the measure of a change in an objects velocity?

When you jump from an elevated position you usually bend your knees upon reaching the ground. by doing this, you make the time of the impact about 10 times as great as for a stiff-legged landing. in this way the average force your body experiences is a) less than 1/10 as great. b) more than 1/10 as great. c) about 1/10 as great.d) about 10 times as great.