Question

one of these representations is not like the others. tap on the one that doesnt belong.
the objects vertical acceleration changes by -9.8 m/s every second.
the objects horizontal velocity is constant; its vertical velocity is changing.
arrows represent velocity vectors

Explanation:

The table shows that the horizontal velocity \(v_x\) is constant (\(16.0\ m/s\)) and the vertical velocity \(v_y\) changes. The correct description of vertical motion is that the vertical velocity changes by \(- 9.8\ m/s\) every second (since acceleration \(a=\frac{\Delta v}{\Delta t}\), and for vertical motion \(a = g=-9.8\ m/s^{2}\), \(\Delta v=a\Delta t\)). The statement "The object's vertical acceleration changes by \(-9.8\ m/s\) every second" is wrong. Acceleration is constant (\(a = - 9.8\ m/s^{2}\)), it is the velocity that changes by \(-9.8\ m/s\) every second.

Answer:

The statement "The object's vertical acceleration changes by \(-9.8\ m/s\) every second"