An object of mass 100 ,kg is accelerated unif | vedclass

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(D) Initial velocity of the object, $u = 5 \,m \,s^{-1}$.Final velocity of the object, $v = 8 \,m \,s^{-1}$.Mass of the object, $m = 100 \,kg$.Time ta

Vedclass · Accepted Answer

$500 \,kg \,m \,s^{-1}$ and $800 \,kg \,m \,s^{-1}$, $50 \,N$

Vedclass · Answer

(D) Initial velocity of the object, $u = 5 \,m \,s^{-1}$.Final velocity of the object, $v = 8 \,m \,s^{-1}$.Mass of the object, $m = 100 \,kg$.Time taken, $t = 6 \,s$.Initial momentum $= m 	imes u = 100 	imes 5 = 500 \,kg \,m \,s^{-1}$.Final momentum $= m 	imes v = 100 	imes 8 = 800 \,kg \,m \,s^{-1}$.Force exerted on the object, $F = \frac{mv - mu}{t}$.$F = \frac{800 - 500}{6} = \frac{300}{6} = 50 \,N$.Thus, the initial momentum is $500 \,kg \,m \,s^{-1}$, the final momentum is $800 \,kg \,m \,s^{-1}$, and the force exerted is $50 \,N$.

An object of mass $100 \,kg$ is accelerated uniformly from a velocity of $5 \,m \,s^{-1}$ to $8 \,m \,s^{-1}$ in $6 \,s$. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object.

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