Are Particles of Matter Attract Each Other?
YES, Particles of matter attract each other.
Let us observe some activities,
Activity: Make four groups and form a human chain
Group1: The First group...
Question:
Find the time when A and B meets for the first time if they are running around a circular track of length 2000 m in the opposite direction with speeds 30 m/s and 70 m/s .
Answer:
Speed...