A) -2i-3j
B) -2i+3j
C) 2i-3j
D) 2i+3j
सही उत्तर: C
आकृति से X-घटक अपरिवर्तित रहता है, जबकि Y-घटक उलट जाता है।
तब, बिंदु B पर वेग $ ( \text{2i-3j} )\text{ ms}{{-}^{1}} $ है।
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