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नीचे दिए गए प्रश्न के लिए अनुच्छेद

Velocity of a block of mass 1 kg moving along x-axis is given as v = 6 – 2t, where t is time in second and v is in m/s. The block is moving in positive x-direction at time t = 0.

x-अक्ष के अनुदिश गतिशील 1 kg द्रव्यमान के एक गुटके का वेग v = 6 – 2t द्वारा व्यक्त किया जाता है, जहाँ t सेकण्ड में समय है तथा v, m/s में है। गुटका समय t = 0 पर धनात्मक x-दिशा में गतिशील है।

Q. Kinetic energy of particle at t = 4 s is

प्रश्न - t = 4 s पर कण की गतिज ऊर्जा है

A
0 J
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B
2 J
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C
4 J
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D
16 J
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Solution

The correct option is B 2 J
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