On a long horizontally moving belt, a child runs to and fro with a speed 
(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 
. For an observer on a stationary platform, the speed of the child running in the direction of motion of the belt is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Speed of child w.r.t. belt 
Speed of belt 
From ground frame
Speed 
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