Which vehicle has an acceleration of 5 m/s2?
Correct answer: D. A motorbike, when its speed changes from rest to 50 m/s in 10s
- A. A bicycle, when its speed changes from rest to 2.5 m/s in 2 s
- B. A car, when its speed changes from rest to 15 m/s in 5s
- C. A lorry, when its speed changes from rest to 20 m/s in 15s
- D. A motorbike, when its speed changes from rest to 50 m/s in 10s
Explanation
Acceleration = (Vi -Vf)/t - (50 - 0)/10 = 5 ms-2. So, the motorbike travels with an accleration of 5ms-2. Hence, option D is correct.
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