Final answer:
Contact forces involve objects in direct contact, while non-contact forces act at a distance. Fundamental forces govern interactions in nature, and Dr. Abdus Salam contributed to unifying two fundamental forces.
Explanation:
Contact forces are forces that occur between objects in contact, such as tension, friction, normal force, and the force of a spring. On the other hand, non-contact forces act at a distance without direct contact, like gravitational and electromagnetic forces. Fundamental forces include gravitational, electromagnetic, weak nuclear, and strong nuclear forces, which govern interactions in nature. Dr. Abdus Salam was a Pakistani physicist who played a prominent role in unifying electromagnetism and weak nuclear force, forming the basis of the electroweak theory.
Learn more about Contact and non-contact forces in physics here:
https://brainly.com/question/17597573
