prove that Newton's first Law of motion
is a special case of 'Newton's second
Law of motion.
Answers
Explanation:
The Second Law of Motion states that if an unbalanced force acts on a body, that body will experience acceleration ( or deceleration), that is, a change of speed. One can say that a body at rest is considered to have zero speed, ( a constant speed). So any force that causes a body to move is an unbalanced force. Also, any force, such as friction, or gravity, that causes a body to slow down or speed up, is an unbalanced force. This law can be shown by the following formula F=ma
F is the unbalanced forcem is the object's massa is the acceleration that the force cause
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The net force F acting on an object with mass m and acceleration a is given by this expression. Newton's first law is a special case of Newton's second law when F = 0. Since m is not zero, acceleration must be zero. Hence, the velocity must remain contant.