A boy and his skateboard have a combined mass of 65 kg. What is the speed of the boy and skateboard if they have a momentum of 275 kg • meters per second? 0 m/s
0.24 m/s
4.2 m/s
8.5 m/s

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations.  in what way do laboratory experiments primarily differ from other forms of scientific investigations?   a.  a laboratory experiment is the only accepted form of investigation within the scientific community.  b.  studies about how things behave in nature or studies involving very large objects are best answered through laboratory experiments.  c.  laboratory experiments involve the identification and control of variables.  d.  data can only be generated through laboratory experiments, not other forms of investigation.

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?