The statement describes Newton’s first law of motion. According to this law, an object remains at rest or continues to move at a constant velocity in a straight line unless acted upon by an external force. Therefore, the correct answer ...
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The difference between the mass and weight of a body is that mass remains constant, while weight is variable. Mass represents the amount of matter in an object, which does not change, while weight depends on gravitational force and varies ...
If the velocity of a moving object is doubled, its kinetic energy quadruples. This relationship is governed by the kinetic energy formula, which is proportional to the square of the velocity. Therefore, the correct answer is [C] Kinetic energy quadruples.
When a boy sits on a rotating round table, the angular velocity will decrease. This decrease occurs due to the conservation of angular momentum. The addition of mass increases the moment of inertia, causing a reduction in angular velocity to ...
When the girl stands up from swinging in a sitting position, the time period of the oscillations will increase. This change occurs because her center of mass rises, altering the swing’s dynamics. As a result, the swing takes longer to ...