Question

one of these representations is not like the others. tap on the one that doesnt belong. the acceleration is directed upward when rising and directed downward as it

Explanation:

Step1: Analyze projectile motion

In projectile motion, the horizontal acceleration \(a_x = 0\) (assuming no air - resistance), and the vertical acceleration \(a_y=-g=- 9.8\ m/s^{2}\) (constant throughout the motion, directed downwards). The velocity - time graph for vertical motion (with \(a_y=-9.8\ m/s^{2}\)) is a straight line with slope \(-9.8\ m/s^{2}\). The velocity vectors (horizontal component constant, vertical component changing due to \(a_y=-9.8\ m/s^{2}\)) and the tables for velocity (\(v_x\) constant, \(v_y = v_{0y}-9.8t\)) and acceleration (\(a_x = 0,a_y=-9.8\ m/s^{2}\)) are all consistent with projectile motion.

Step2: Check the wrong statement

The statement “The acceleration is directed upward when rising and directed downward as it” is wrong. In projectile motion, the acceleration (due to gravity) is always \(a=-g=-9.8\ m/s^{2}\) (directed downward) throughout the motion, whether the object is rising or falling.

Answer:

The statement “The acceleration is directed upward when rising and directed downward as it”