3. These views remained widely supported until the 1500s when Galileo Galilei (1564-1642) popularized experimentation. Isaac Newton (1642–1727) proposed that the tendency of an object was to maintain its current state of motion.
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7. What are the types of Forces? Type of Force Force Symbol Contact Friction F fric or F f Contact Normal F N Contact Applied F Appl Contact Spring F S Contact Tension F T Contact Thrust F thrust Long-Range Weight F grav