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  • On a long horizontally moving belt (Fig.), a child runs to and fro with a speed 9 km h^–1 (with respect to the belt) between his father and mother located 50 m apart on the moving belt. The belt moves with a speed of 4 km h^–1. (a)

Q 3.25  On a long horizontally moving belt (Fig.), a child runs to and fro with a speed 9 km h-1 (with respect to the belt) between his father and mother located 50 m apart on the moving belt. The belt moves with a speed of 4 km h-1. For an observer on a stationary platform outside, what is the

(a) speed of the child running in the direction of motion of the belt?

Answers (1)

best_answer

(a) Speed of the child when the boy is running in the direction of the motion of the belt = 9 + 4 = 13 km h-1

      

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