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For motion of an object along the x axis,the velocity v,depends on the displacement x as v=( 2x^2-x), then what is the acceleration at x=2m |
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Answer» V = 2x²-x We know, Differentiation of VELOCITY gives acceleration, a= dv/DX {y = 2x²-x} a= d2x²-x/dx a= d(2x²)/dx + d(-x)/x a = 2×2x²-¹ + -x¹-¹ a = 4x-1 Acceleration at x = 2M a = 4×2-1 = 8-1 = 7 Acceleration at x = 2m is 7m/s² Cheers! |
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