A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to the square of its speed. The object falls with an acceleration of 4.00 m/s2 downward when it is falling downward at 70.0 m/s. What is its terminal speed?
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If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are truebut reason is not the correct explanation of assertion
If assertion is true but reason is false
If both assertion and reason are false.
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