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The position vector of a particle is givenby T -3ti +5t j+ 7k. Find the direction inwhich the particle experiences net force? |
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Answer» The direction of force will be same as of the direction of its acceleration so, we need to find the direction of acceleration "a" now , r = 3ti + 5t²j + 7k so, dr/dt = 3i+10tj + 0k again d²r/dt² = a = 10j so, the direction of force is in ĵ . |
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