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4.The acceleration of the particle is given by a = 2t+1. The velocity at the particle at t = 2 s if it was atrest at t = 0(1) 6 ms -1(2) 8 ms -1(3) 4 ms-1(4) 10 ms-1

Answer»

how to solve

For this integrate the acceleration as dv/dt =afrom 0 to 2hence2t^2/2+t]2-[2t^2/2+t]0t^2+t]2=4+2=6m/s



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