A car accelerates from rest along a straight level road - Scottish Highers Physics - Question 4 - 2019
Question 4
A car accelerates from rest along a straight level road.
The acceleration of the car is constant.
Which pair of displacement-time (s-t) and acceleration-time (a-t) g... show full transcript
Worked Solution & Example Answer:A car accelerates from rest along a straight level road - Scottish Highers Physics - Question 4 - 2019
Step 1
Identify the correct displacement-time graph (s-t)
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Answer
Since the car accelerates from rest, the displacement-time graph should show a curve that indicates increasing displacement with time. The graph should start at the origin (0,0) and curve upwards, indicating that as time progresses, displacement increases more rapidly due to constant acceleration.
Step 2
Identify the correct acceleration-time graph (a-t)
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Answer
The acceleration-time graph for an object with constant acceleration is a horizontal line above the time axis. This indicates that the acceleration remains constant over time after the initial state of rest.
Step 3
Choose the correct pair of graphs (A, B, C, D, E)
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Answer
The correct pair of graphs that represents these characteristics is option A, as it features a curved displacement-time graph and a constant acceleration-time graph.
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