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Practice #14,562
Q
एक समान गति से चल रही रेलगाड़ी से एक व्यक्ति द्वारा एक गेंद गिराया गया । इसे प्लेटफार्म पर खड़ा एक पर्यवेक्षक इसका निरीक्षण करता है तो पर्यवेक्षक द्वारा निरक्षित पथ क्या होगा ?
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