The dimension of which of the following is the same as that of impulse ?

The dimension of which of the following is the same as that of impulse? 

(1) Volume 

(2) Momentum 

(3) Torque 

(4) Change in the rate of momentum 


Answer: (2) The quantity of impulse is force × time interval. In classical mechanics, linear momentum or translational momentum is the product of the mass and velocity of an object. For example, a heavy truck moving fast has a large momentum—it takes a large and prolonged force to get the truck up to this speed, and it takes a large and prolonged force to bring it to a stop afterwards. If the truck were lighter or moving slower, then it would have less momentum.


The dimension of which of the following is the same as that of impulse ?   (1) Volume   (2) Momentum   (3) Torque   (4) Change in the rate of mo mentum


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