Arshad is driving down 7th street, he drives 150m in 18s.Assume he does not speed up or slow down, what is his speed?
Correct answer: C. 8.33m/s
- A. 0.38m/s
- B. 126m/s
- C. 8.33m/s
- D. 58.33m/s
Explanation
We need to calculate the constant speed, the formula for it is given: speed= distance/time = 150/18 = 8.33m/s Hence the right answer is option C.
This question appeared on the UHS MDCAT 2017 paper, which you can sit online with every answer explained.
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About Displacement and Velocity
Displacement is the directed change in position, while velocity is the rate of change of displacement and includes both magnitude and direction. The topic connects position-time and velocity-time graphs with average and instantaneous values, and distinguishes displacement from distance and velocity from speed.
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