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state Newton's second law of motion and show that the first law of motion can be mathematically stated from the mathematical expression for the second law of motion |
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Answer» HEY BUDDY !!! HERE IS UR ANSWER!!! ______________________ ♤ Second law of Newton states that force applied on a BODY is equal is equal to change in momentum , i.e =》 F = d( P ) / DT ● We KNOW P = m.v ● Where , m is mass of body ; v id velocity =》 F = d( m.v ) / dt =》 F = m.d( v ) / dt // mass always constant ■ We know ( d( v ) / dt ) is equal to acceleration =》 F = m.a-----------( 1 ) ■ First law states that if no force is applies object , it doesn'tchange it's state . ■ Now in eqn ( 1 ) putting F = 0 ■ There fore acceleration will be 0 , which means object is in rest or have constant velocity.Hence it proves first law of motion. HOPE HELPED!! JAI HIND!! :-) |
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