alleryদুখন ৰে'ল সমান্তৰাল ট্ৰেকত 60 km/h আৰু 40 km/h গতিত ইখনে সিখনৰ পিনে অগ্ৰসৰ হয়। সিহঁতে কিমান দ্ৰুতভাৱে মাজৰ ব্যৱধান কমায়?
A24 km/h
B50 km/h
C100 km/h
D20 km/h
Answer & Solution
Correct answer: C. 100 km/h
বিপৰীত দিশত গতি কৰিলে সিহঁতৰ দ্ৰুতি যোগ হয়, যাৰ ফলত 100 km/h পোৱা যায়।
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