APFIVE Resistive Force Differential Equation
What is the differential equation for velocity when a resistive force $$F_r = -kv$$ acts on an object?
A
$$m \frac{dv}{dt} = -kv$$
B
$$m \frac{dv}{dt} = k$$
C
$$m \frac{dv}{dt} = kv$$
D
$$m \frac{dv}{dt} = -k$$
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