Final answer:
The student's physics question pertains to the interpretation of graphs related to motion, including the characteristics of graphs representing speeding up objects, the implications of constant speed, and the relationships between acceleration, velocity, and displacement over time.
Step-by-step explanation:
The subject of this question falls under Physics, specifically within the topic of kinematics, which deals with the motion of objects without considering the causes of motion. More precisely, the question addresses concepts related to the graphical representation of motion, acceleration, and velocity.
Answers to Given Statements:
- False: The position vs time graph of an object that is speeding up is not a straight line; it is a curved line that shows increasing slope as the object speeds up.
- A car moving on a straight road at a constant speed in a single direction indicates that the car's velocity is uniform, and there are no net forces acting on the car in the direction of its motion.
- True: By taking the slope of the velocity vs time curve at a given time, we can verify the velocity at that instant, assuming the graph's data points correctly reflect the car’s velocity.
- True: If the slope of a velocity vs time graph is constant, the acceleration is also constant. In this case, the car's acceleration would be 5.0 m/s² if the slope of the line indicates such a value.
- The procedure to apply would be d. Drive the car at exactly 50 mph and then apply the accelerator until it reaches the speed of 60 mph and record the time it takes.
- True: The vector for negative acceleration does indeed point in the opposite direction when compared to the vector for positive acceleration.
- True: When an object is moving with constant acceleration, the displacement vs time graph is a curved line and the displacement vs time squared graph is a straight line, due to the quadratic relationship between displacement and time in uniformly accelerated motion.