What is Position? in science

Anybody wanna ? (picture included? )

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.