Newton's laws generally speak about all forces, but to use them for any specific problem, students have to know all the forces involved. NCERT Solutions for Class 9 Science Chapter 9, 'Force and Laws of Motion' describes Newton's three laws of motion and conservation of momentum.
'Force and Laws of Motion - Class 9 NCERT Solutions' will help students understand what causes motion, nature of cause, and change in the speed of object from time to time. Given below are subjective and objective type questions and answers for your reference.
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Interesting fact- 1921 Nobel Prize in Physics was won by Albert Einstein for his work in the field of theoretical physics.