APFIVE Force from Time-Varying Momentum
A 2.0 kg object’s momentum varies with time according to the function p(t) = 4t² - 2t (in kg·m/s, with t in seconds). What is the net external force acting on the object at t = 3 seconds?
A
34 N
B
11 N
C
22 N
D
8 N
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