Speed of particle moving in a circle of radius 2 m varies with time (t) as v = 2t m/s, where t is time in second. For what value of time (t) acceleration makes an angle of 45º with velocity?

2 m त्रिज्या के एक वृत्त में गतिशील कण की चाल, समय (t) के साथ v = 2t m/s के अनुसार परिवर्तित होती है, जहाँ t, सेकण्ड में समय है। समय (t) के किस मान के लिए त्वरण, वेग के साथ 45º का कोण निर्मित करता है?

2 s

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1 s

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\frac{1}{2} s

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\sqrt{2} s

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The correct option is B 1 s
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The correct option is B 1 sSolution

The correct option is B 1 s
Solution