The displacement s of particle moving along a straight line is given by, s = t3+3t2+5t, Where s is in metres and t is in seconds. The velocity of the particle at t = 2seconds is
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s= t3+3t2+5t, we know that derivative of displacement is velocity
ans:29 m/s
Explanation:
d/dx(t3+3t2+5t)= 3t2+6t+5= velocity
t=2s (given)
3(2)2+6(2)+5
=3(4)+6(2)+5
=29 m/s
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