1.

The kinetic energy of a body becomes twice its initial value. The new momentum of thebody will bea) 2 timesb) 2 timesc) 4 timesd) unchanged

Answer»

Momentum p = √(2*kinetic energy*mass)=> p2/p1= √(2/1)=> p2/p1 = √2=> Momentum becomes √2 times the original value.

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