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  • Malaysia's leader said on Saturday communications aboard a missing jet were switched off and its course deliberately changed by someone on board before the aircraft disappeared a week ago, but stopped short of saying it had been hijacked.

  • Ukraine braced on Saturday for a breakaway vote in Crimea as deadly violence flared again in the ex-Soviet country's tinderbox east amid the biggest east-west showdown since the Cold War.

  • Finally, the TRS chief K Chandrashekhara Rao has broken his silence over possibility of an alliance with the Congress in Telangana. After saying a firm 'no' to merger with the Congress, KCR has now ruled out any alliance with the Congress in both Assembly and Lok Sabha elections to be held on April 30.

  • The Bharatiya Janata Party's much anticipated list of Lok Sabha candidates is expected shortly which will end the the suspense over who will contest from Varanasi - its prime ministerial candidate Narendra Modi or party veteran Murli Manohar Joshi.

  • The Delhi High Court has confirmed death penalty to all four convicts of the December 16 Delhi gangrape and murder case. The four were convicted in September 2013 for raping and murdering a 23-year-old paramedical student.

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    Home >> Science >> Laws Of Motion

    Laws Of Motion

    First Law of Motion

    The first law of motion states that an object in rest or uniform motion in a straight line will remain in that motion until an external force is applied to it.

    Second Law of Motion

    The second law of motion states that the rate of change of momentum of an object is proportional to unbalanced force applied and its direction.

    Third Law of Motion

    The third law of motion states that one object exerts a force on another object,the second object instaneously exerts a force back on the first.These two forces are always equal in magnitude but opposite in direction.

    These forces act on different objects and never on the same object.The two opposing forces are also known as action and reaction forces.These forces may not produce accelerations of equal magnitude.This is because each force acts on a different object that may have a different mass.To every action,there is an equal and opposite reaction.

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