Newton's third law
Newton's third law is a Science & Technology concept from the MPSC syllabus, tested in 2 past MPSC questions (2022). Below are those real questions with their correct answers and explanations, plus the concepts worth being comfortable with first.
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एका बंदुकीचे वस्तुमान 6 kg असून त्यातून गोळी झाडल्यानंतर बंदूक 170 cm/s वेगाने प्रतिकेक्षिपत होते, तर बंदुकीचा संवेग काढो : The mass of a gun is 6 kg and it recoils with a speed 170 cm/s. What is the momentum of the gun ?
Momentum = mass × velocity. Mass of gun = 6 kg, recoil velocity = 170 cm/s = 1.7 m/s. Momentum = 6 × 1.7 = 10.2 kg m/s or in cgs units 6000 g × 170 cm/s = 1020000 g cm/s.
दोन वस्तू, A आणि B यांचे वस्तुमान अनुक्रमे m1 आणि m2 आहे. न्यूटनच्या गतीविषयक तिसऱ्या नियमानुसार, A वस्तू B वस्तूवर जे बल प्रयुक्त करते ते, Two objects, A and B have masses m1 and m2, respectively. According to Newton's third law of motion, the force exerted by A on B is :
Newton's third law states that to every action, there is an equal and opposite reaction. Thus, the force exerted by A on B is equal in magnitude and opposite in direction.