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kmb11132
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Homework Statement
The given data is a graph depicting the distance (km) that a bus travels over 3.5 hours. The trip is broken up into three linear segments. I am supposed to find the average acceleration over the entire trip in km/hr^2. I am told that the answer will be negative.
Edit: The graph I have been given hasn't been made easy to read. The numbers I give below don't coincide with the ones I used when I originally calculated the velocity and acceleration. I'm recalculating those numbers now and attempting to find the solution again.
Segment 1 (from rest): 25 km in 1 hour
velocity: 25 km/hr
avg. acceleration: 25 km/hr^2
Segment 2: 7.25 km in 1.25 hours
velocity: 6 km/hr
avg. acceleration: -15.2 km/hr^2
Segment 3: -5 km in 1.25 hours
velocity: -4 km/hr
avg. acceleration: -5.714 km/hr^2
Homework Equations
(Unknown)
The Attempt at a Solution
(25-15.2-5.714)/3 = 1.362 km/hr^2
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