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The graph below represents the relationship between speed and time for a car moving in a straight line.

What is the acceleration of the car?

a
0 m/s2

b
10 m/s2

c
1.0 m/s2

d
0.10 m/s2

1 answer

To determine the acceleration of the car from a graph of speed versus time, you need to look for the slope of the line on the graph. Acceleration is defined as the change in speed divided by the change in time.

  1. If the graph is a horizontal line (constant speed), the acceleration is 0 m/s².
  2. If the line is sloping upwards (increasing speed), calculate the slope (rise/run) to find the acceleration.
  3. If the line is sloping downwards (decreasing speed), the acceleration is negative, but still calculated as rise/run.

Without seeing the actual graph, I can't determine the exact acceleration, but you can use these guidelines to analyze it.

If you can share details about the graph's slope (or values of speed at different times), I can help compute the acceleration and confirm which option (a, b, c, or d) it corresponds to.