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  • Writer's picturekeshprad

PhysicsBowl 2016 Q11


11) This question is a series with question 12. We want to find the final speed of the 3.0 kg object described in the situation above. Let's start by drawing out the situation.

Where F is force, t is time, d is distance, and v is velocity

Let's start with Newton's 2nd Law and manipulate it to fit our situation.

Where F is force, m is mass, a is acceleration, v is velocity, and t is time

By manipulating Newton's 2nd Law we can find the Impulse-Momentum theorem. We already know all information necessary to solve this equation for v[f].

Where F is force, t is time, m is mass, and v is velocity

Answer: C

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