If a vehicle is accelerated to 5 ms−2, how much time does it take to attain a velocity of 27
ms−1 which initially starts with 2ms−1?
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Answered by
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Provided that:
- Acceleration = 5 m/s²
- Initial velocity = 2 m/s
- Final velocity = 27 m/s
To calculate:
- Time taken
Solution:
- Time taken = 5 seconds
Using concept:
- First equation of motion
Using formula:
- v = u + at
Where, v denotes final velocity, u denotes initial velocity, a denotes acceleration and t denotes time taken
Required solution:
→ v = u + at
→ 27 = 2 + 5t
→ 27 - 2 = 5t
→ 25 = 5t
→ 25/5 = t
→ 5 = t
→ t = 5 seconds
→ Time = 5 seconds
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