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A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the acceleration of the bus.?
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A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the ...
**Given:**
Initial speed, u = 80 km/h
Final speed, v = 60 km/h
Time, t = 5 s
**To find:**
Acceleration, a
**Formula:**
Acceleration (a) = (Change in velocity) / (Time taken)
Change in velocity = Final velocity - Initial velocity
**Calculation:**
1. Convert the given speeds from km/h to m/s:
Initial speed, u = 80 km/h × (1000 m/1 km) × (1 h/3600 s) = 22.22 m/s
Final speed, v = 60 km/h × (1000 m/1 km) × (1 h/3600 s) = 16.67 m/s
2. Calculate the change in velocity:
Change in velocity = v - u = 16.67 m/s - 22.22 m/s = -5.55 m/s
3. Calculate the acceleration:
Acceleration (a) = (Change in velocity) / (Time taken) = -5.55 m/s / 5 s = -1.11 m/s² (negative sign indicates that the bus is decelerating)
**Answer:**
The acceleration of the bus is -1.11 m/s².
Initial speed, u = 80 km/h
Final speed, v = 60 km/h
Time, t = 5 s
**To find:**
Acceleration, a
**Formula:**
Acceleration (a) = (Change in velocity) / (Time taken)
Change in velocity = Final velocity - Initial velocity
**Calculation:**
1. Convert the given speeds from km/h to m/s:
Initial speed, u = 80 km/h × (1000 m/1 km) × (1 h/3600 s) = 22.22 m/s
Final speed, v = 60 km/h × (1000 m/1 km) × (1 h/3600 s) = 16.67 m/s
2. Calculate the change in velocity:
Change in velocity = v - u = 16.67 m/s - 22.22 m/s = -5.55 m/s
3. Calculate the acceleration:
Acceleration (a) = (Change in velocity) / (Time taken) = -5.55 m/s / 5 s = -1.11 m/s² (negative sign indicates that the bus is decelerating)
**Answer:**
The acceleration of the bus is -1.11 m/s².
Community Answer
A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the ...
-1.11m/s²
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A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the acceleration of the bus.?
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A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. 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 A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. 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 A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the acceleration of the bus.?.
A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. 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 A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. 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 A bus decreases its speed from 80 km h–1 to 60 kmh–1 in 5 s. Find the acceleration of the bus.?.
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