At time t a particle moving along the x-axis is at position x. The relationship between x and t is given by: tx = x^2 +10. At x=2 what is the velocity of the particle.
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on differentiating, x+t*dx/dt=2x or,dx/dt=x/t=2/t. now,put,x=2 in original equation,u get,t=7. so,dx/dt(x=2)=2/7 units.
is sbcd90 correct? I still don't understand.
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