Answer:
In a two particle system, the center of mass lies on the center of the line joining the two particles.
Machines makes work easier by increasing the amount of force that is applied, and changing the direction in which the force is applied !! Hope it helped (p.s. I had this same question)
2m/s because the hockey puck is traveling at a constant speed ( acceleration is 0 ). Unless something acts on the hockey puck it will travel 2 m/s forever.
Answer:
The act of using senses or tools to gather information is called <em>Obser</em><em>vation</em><em>.</em>
