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Answer the following questions: Compare Aristotle's concept of inertia with the ideas of Galileo and Newton. In making your comparison, state the concept as each
- Answer the following questions:
- Compare Aristotle's concept of inertia with the ideas of Galileo and Newton. In making your comparison, state the concept as each interpreted it and give the similarities and differences.
- If a baseball rolls across the ground and comes to a stop, how would Aristotle, Galileo, and Newton interpret the behavior of the ball?
- Answer the following questions:
- Explainmechanical equilibrium.
- If a book rests motionless on a table, what forces are acting on it?
- What is the net force on the book?
- How would the magnitude of the forces change if a second book of equal weight was placed on top of the first book?
- A 50 kilogram student stands in an elevator. How much force does she exert on the elevator floor if:
- The elevator is stationary?
- The elevator accelerates upward at 1 meter per second squared (m/s2)?
- Distinguish between speed, velocity, and acceleration. Explain the quantities in terms of "freely falling" objects.
- Answer the following questions:
- How long would it take for an object dropped from the Leaning Tower of Pisa (height 54.6 meters) to hit the ground?
- How fast was the object traveling at the moment of impact?
- Construct a table of values of velocity and total distance fallen at the end of each half-second during the first 5 seconds for a stone at rest dropped from a very tall building. Include columns for time, velocity, and total distance.
- A parachute dropped from a 30 meter-high cliff falls with a constant velocity of 1.5 meters per second. Twenty-two seconds later a stone is dropped from the cliff.
- How long does it take for the parachute to hit the ground?
- How long does it take for the stone to hit the ground?
- Which one will hit the ground first and why?
- Galileo used inclined planes to investigate "free fall." Why did he do that instead of experimenting with velocity by dropping objects?
- Explain the following terms:
- linear motion
- constant velocity
- accelerated motion
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