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| Q.9 | क्रमशः 80 m और 120 m लंबाई वाली दो छोटी रेलगाड़ियां समानांतर पटरियों पर विपरीत दिशाओं में क्रमश: 30 m/s और 20 m/s की चाल से चल रही हैं। दोनों छोटी रेलगाड़ियों को एक-दूसरे को पार करने में कितना समय (सेकंड में) लगेगा? | |
| Ans | A. 8 | |
| B. 6 | ||
| C. 4 | ||
| D. 10 |
Correct Ans Provided: C
