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Problem Solving Questions
State first law of motion. Explain with the help of examples. Why is it called law of inertia?
Define inertia. Why is it important to have knowledge of inertia in our daily life? Elaborate your answer with examples.
State and prove Newton's second law of motion. Deduce Newton's second law of motion from its first law?
State Newton's 3rd law of motion. Explain with examples from daily life.
State the limitations of Newton's laws of motion.
Differentiate with examples between contact and non-contact forces. Also, explain fundamental forces and the role of Dr. Abdus Salam from Pakistan in unifying two fundamental forces.
Represent the forces acting on a body using free body diagrams.
Define momentum. What is its formula and unit? Is it a scalar or vector quantity? Show that units of momentum, Ns and kgm/s are equal.
Differentiate between mass and weight of body.
What are gravitational field and gravitational field strength? Explain.
Justify and illustrate the use of electronic balances to measure mass.
State and prove Newton's second law of motion in terms of momentum.
Define isolated system. State law of conservation of linear momentum. Explain with example.