On a long horizontally moving belt,a child ru | vedclass

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Question

(D) Let the velocity of the belt with respect to the ground be $v_{BG} = 4 \, km \, h^{-1}$.Let the velocity of the child with respect to the belt be

Vedclass · Accepted Answer

$13$

Vedclass · Answer

(D) Let the velocity of the belt with respect to the ground be $v_{BG} = 4 \, km \, h^{-1}$.Let the velocity of the child with respect to the belt be $v_{CB} = 9 \, km \, h^{-1}$.We need to find the velocity of the child with respect to the ground $(v_{CG})$ when the child is running in the direction of the belt's motion.According to the relative velocity formula: $v_{CG} = v_{CB} + v_{BG}$.Substituting the given values:$v_{CG} = 9 \, km \, h^{-1} + 4 \, km \, h^{-1} = 13 \, km \, h^{-1}$.Thus,for an observer on a stationary platform,the speed of the child running in the direction of motion of the belt is $13 \, km \, h^{-1}$.

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