1. Shanelle is in a stationary truck with her mom, waiting to pick her brother up from soccer practice. Which is the best reference point for her to use to determine when the truck starts and begins to move?

Is it C

Sorry I forgot to mark my answer

no, you need a geographic point. Such as a soccer goal, tree, or stop sign.

To determine when the truck starts and begins to move, Shanelle can use a reference point that is motionless, meaning that it is not moving. This will help her distinguish between the movement of the truck and the potential movement of other objects.

Option B, a soccer goal in the field next to the car, would be the best reference point in this scenario. Since the soccer goal is stationary and not moving, it can be used as a reliable reference point. Shanelle can observe the relative motion between the truck and the soccer goal. When she sees the truck starting to move with respect to the stationary soccer goal, she can conclude that the truck has started to move.

Option A, the SUV parked next to them, is not an ideal reference point because the SUV itself might be moving or might start moving.

Option C, one of the players walking to their car, is not a suitable reference point since the player is also in motion.

Option D, a player riding their bike home from practice, is not a good reference point because the player is not stationary and is also in motion.

Therefore, the best reference point for Shanelle to determine when the truck starts and begins to move is the stationary soccer goal in the field.