It would <span>keep rolling without slowing down if no friction acted upon it.
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<span>When light passes through a prism it is separated into its component colors</span>
Well velocity is a vector quanity and we can brake vectors in to verticle and horizantal componontes threw these two formulas Vcostheta=Vx and Vsintheta=Vy
Explanation:
We have,
Surface area,
The current varies wrt time t as :
(a) At t = 2 seconds, electrical charge is given by :
(b) Current is given by :
Instantaneous current at t = 1 s is,
(c) Current is,
Current density is given by electric current per unit area.
Therefore, it is the required explanation.