Question

On a long horizontally moving belt, a child runs to and fro with a speed of 9Km/hr. (with respect to the belt) between his father and mother located 50m apart on the moving belt. The belt moves with a speed of 4 Km/hr. For What an observer on a stationary platfom1 outside, is the i) Speed of the child running ii) Speed of in the direction of the motion of the belt. the child running opposite iii) Time taken

Answer 1

Answer:

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