Free fall 5

Jeremy accidentally dropped his toy stuffed animal from the balcony of his apartment on the fourth floor. The toy hit the ground at a velocity of 16.0 meters/second. At impact, it took 2.0 seconds for the toy's velocity to reach 0 meters/second. If the toy has a mass of 0.25 kilograms, what's the force of the impact?

Correct answer:

F =  2 N

Step-by-step explanation:

$$\begin{gathered} m=0.25\text{kg} \\ {v}_0=16\text{m/s} \\ {v}_2=0\text{m/s} \\ t=2\text{s} \\ a=\frac{v_0-v_2}{t}=\frac{16-0}{2}=8{\text{m/s}}^2 \\ F=m\cdot a=0.25\cdot 8=2\text{N} \end{gathered}$$

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