State Newton’s third law of motion
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For the study of any kind of motion, we never use Newton’s first law of motion directly. Why should it be studied?
1. Newton’s first law shows an equivalence between the ‘state of rest’ and ‘state of uniform motion along a straight line.’ 2. Newton’s first law of motion defines force as a physical...
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What is then special about Newton’s first law if it is derivable from Newton’s second law?
1. Newton’s first law shows an equivalence between the ‘state of rest’ and ‘state of uniform motion along a straight line.’ 2. Newton’s first law of motion defines force as a...
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State Newton’s second law of motion and its importance.
Statement: The rate of change of linear momentum of a rigid body is directly proportional to the applied (external unbalanced) force and takes place in the direction of force. \(\overset\rightarrow{F}=\frac{d\overset\rightarrow{p}}{dt}\) Where, \(\overset\rightarrow{F}\) = Force...
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State the importance of Newton’s third law of motion.
1. Newton’s third law of motion defines action and reaction as a pair of equal and opposite forces acting along the same line. 2. Action and reaction forces always act on...
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State the limitations of Newton’s laws of motion.
1. Newton’s laws of motion are not applicable in a non-inertial (accelerated) frame of reference. 2. Newton’s laws are only applicable to point objects. 3. Newton’s laws are only applicable to rigid...
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According to Newton’s third law of motion for every action there is equal and opposite reaction, why two equal and opposite
Forces of action and reaction always act on different bodies, hence they never cancel each other.
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A force of 5 newton acts on a body of weight 9.80 newton. What is the acceleration produced in m/s^2?
Correct option is: (C) 5.00 Given, F = 5N W = 9.80 a = ? W = mg \(9.80 = m \times 9.8\) m = 1 kg F = ma \(5 = 1 \times a\) \(a = 5 m/s^2\)
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A force of 5 newton acts on a body of weight 9.80 newton. What is the acceleration produced in m/s^2?
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(I) Kepler derived the laws of planetary motion. (II) Newton provided the reason behind the laws of planetary motion.
Correct option is: (B) (II) is correct.
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Newton’s law of gravitation is called universal law because (A) force is always attractive.
(D) it is applicable at all places of universe for all distances between all particles.
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