Given below are two statements: 
Statement I: Given that the magnitude of the acceleration of a body is constant, the force acting on it must be constant.
Statement II: Newton's second law leads to the statement that the acceleration of a body is directly proportional to the net force acting on it.
 
1. Statement I is incorrect and Statement II is correct.
2. Both Statement I and Statement II are correct.
3. Both Statement I and Statement II are incorrect.
4. Statement I is correct and Statement II is incorrect.
Subtopic:  Newton's Laws |
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A block of mass \(M\) lies at rest on a horizontal table.

Statement I: (Newton's 3rd Law) To every action, there is an equal and opposite reaction. Action and reaction forces act on different bodies and in opposite directions.
Statement II: The normal reaction is the reaction force, while the weight is the action.
 
1. Statement I is True, Statement II is True and Statement I is the correct reason for Statement II.
2. Statement I is True, Statement II is True and Statement I is not the correct reason for Statement II.
3. Statement I is True, Statement II is False.
4. Statement I is False, Statement II is True.
Subtopic:  Newton's Laws |
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A balloon ascending with an acceleration \(a\) has a ballast of mass \(m\) thrown out, and it is observed to move upward with double the acceleration. The mass of the remaining part (after the ballast is thrown out) is:
      
1. \(m\dfrac{g+2a}{g+a}\)
2. \(m\dfrac{g+a}{g}\)
3. \(m\dfrac{g+a}{a}\)
4. \(m\dfrac{g+2a}{g}\)
Subtopic:  Newton's Laws |
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Blocks \(A\) and \(B\) are connected as shown by an ideal string passing over a smooth pulley and released from rest. Take \(g = 10~\text{m/s}^2.\) The acceleration of the block \(B,\) relative to \(A,\) will be:
                    
1. \(5~\text{m/s}^2\)
2. \(4~\text{m/s}^2\)
3. \(2~\text{m/s}^2\)
4. \(1~\text{m/s}^2\)

Subtopic:  Newton's Laws |
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