Velocity of a particle of mass 2 kg varies with time t according to the equation 
. Here t is in seconds. Find the impulse imparted to the particle in the time interval from t = 0 to t = 2 s.
Text Solution
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CHECK THE SOLUTION.
Sol. v t = 0 = 4 
m/sec mass m = 2 kg
v t = 2 = 2 × 2i + 4 
= 4i + 4 
J = P f – P i = 2 [4i + 4 
– 4 
] = 8i N-s.
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