19) A particle moves along the x-axis. Its position varies with time according to the expression: x(t) = 3t^3 - 4t^2 + 2t - 5, where x is in meters and t is in seconds. The magnitude of the acceleration (in m/s^2) of this particle at t = 1 sec is: a) 2 b) 10 c) 6.5 d) 15.4 e) zero
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The derivative of \( x(t)=3 t^{3}-4 t^{2}+2 t-5 \) is \( v(t)=9 t^{2}-8 t+2 \). Show more…
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