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Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus?
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Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds fi...
Understanding the Problem
To find the acceleration of the bus, we first need to clarify the given information:
- Initial Speed (u): 80 km/h
- Final Speed (v): 60 km/h
- Time (t): 5 seconds
Converting Speeds
Speed needs to be in meters per second (m/s) for calculations:
- Initial Speed:
- 80 km/h = (80 × 1000) / (3600) = 22.22 m/s
- Final Speed:
- 60 km/h = (60 × 1000) / (3600) = 16.67 m/s
Formula for Acceleration
The formula for acceleration (a) is given by:
- a = (v - u) / t
Where:
- v = final speed
- u = initial speed
- t = time taken
Calculating Acceleration
Now substituting the values into the formula:
- a = (16.67 m/s - 22.22 m/s) / 5 s
This simplifies to:
- a = (-5.55 m/s) / 5 s
- a = -1.11 m/s²
Interpreting the Result
- The negative sign indicates that the bus is decelerating (slowing down).
- The acceleration of the bus is -1.11 m/s².
Conclusion
- The bus decreased its speed from 80 km/h to 60 km/h in 5 seconds with an acceleration of -1.11 m/s².
- This indicates a steady decrease in speed, highlighting the importance of understanding motion in physics.
To find the acceleration of the bus, we first need to clarify the given information:
- Initial Speed (u): 80 km/h
- Final Speed (v): 60 km/h
- Time (t): 5 seconds
Converting Speeds
Speed needs to be in meters per second (m/s) for calculations:
- Initial Speed:
- 80 km/h = (80 × 1000) / (3600) = 22.22 m/s
- Final Speed:
- 60 km/h = (60 × 1000) / (3600) = 16.67 m/s
Formula for Acceleration
The formula for acceleration (a) is given by:
- a = (v - u) / t
Where:
- v = final speed
- u = initial speed
- t = time taken
Calculating Acceleration
Now substituting the values into the formula:
- a = (16.67 m/s - 22.22 m/s) / 5 s
This simplifies to:
- a = (-5.55 m/s) / 5 s
- a = -1.11 m/s²
Interpreting the Result
- The negative sign indicates that the bus is decelerating (slowing down).
- The acceleration of the bus is -1.11 m/s².
Conclusion
- The bus decreased its speed from 80 km/h to 60 km/h in 5 seconds with an acceleration of -1.11 m/s².
- This indicates a steady decrease in speed, highlighting the importance of understanding motion in physics.
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Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus?
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Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus?.
Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Ab bus decreased its speed from 80 km / h to 60 km / h in 5 seconds find the acceleration of the bus?.
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