Final answer:
It is false to use quick and heavy acceleration to remove a stuck vehicle. In physics related queries, position vs time graphs, acceleration vectors, and energy transformations have specific characteristics that are not uniform but depend on the context and conditions of the moving object.
Step-by-step explanation:
To address the student's initial inquiry regarding a struck vehicle, false, you should not use quick and heavy acceleration to remove a stuck vehicle as it can cause further damage or loss of control.
Now, let's answer your schoolwork questions:
- True or False: The position vs time graph of an object that is speeding up is a straight line. False. If an object is speeding up, the position vs time graph will be a curve that gets steeper over time, reflecting increasing speed.
- True or False-The vector for a negative acceleration points in the opposite direction when compared to the vector for a positive acceleration. True. Negative acceleration, or deceleration, is in the opposite direction to the velocity, in which positive acceleration increases.
- True or False: Consider an object moving with constant acceleration. The plot of displacement versus time for such motion is a curved line while the plot of displacement versus time squared is a straight line. True. For constant acceleration, displacement varies with the square of time, hence the straight-line relationship when plotting against time squared.
- An object experiencing an increase in kinetic energy during ascent and potential energy during descent, like a rock thrown into the air, is False. The rock gains potential energy as it rises and loses kinetic energy; as it falls, it gains kinetic energy and loses potential energy.
- The following both involve acceleration: a person standing up from a seated position and a car accelerating while driving.
- A car moving on a straight road at a constant speed in a single direction has no acceleration since its speed and direction are not changing.