Torque as the Derivative of Angular Momentum
The angular momentum, L, of a system as a function of time, t, is given by the equation L(t) = 5 - 3t + 2t². At what time is the net external torque on the system zero?
A
t = 0 s
B
t = 3 s
C
t = 1.5 s
D
t = 0.75 s
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