Q. The motion of center of mass of a system is governed by

किसी निकाय के द्रव्यमान केन्द्र की गति किसके द्वारा नियंत्रित होती है?

A
Newton's first law
न्यूटन का प्रथम नियम
B
Internal forces only
केवल आंतरिक बल
C
External forces only
केवल बाहरी ताकतें
D
Net external force
शुद्ध बाह्य बल

Explanation

Only external forces affect the motion of the center of mass. Internal forces (between particles in the system) cancel out in pairs due to Newton’s third law. Thus, the net external force determines the acceleration and motion of the CM.

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AC and DC Circuits Thermodynamic Processes First Law of Thermodynamics Laboratory Experiments Electrostatics

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