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A bus decreases its speed from 80km/h to 60km/h in 5sec. Find the acceleration of the bus?
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A bus decreases its speed from 80km/h to 60km/h in 5sec. Find the acce...

So, the bus is decelerating at a rate of -1.11 m/s^2. 
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A bus decreases its speed from 80km/h to 60km/h in 5sec. Find the acce...
Calculation of Acceleration of Bus


The problem requires finding the acceleration of a bus that decreases its speed from 80km/h to 60km/h in 5 seconds. The formula to calculate acceleration is:


Acceleration = (Final Velocity - Initial Velocity)/Time


where:


  • Final Velocity: 60 km/h

  • Initial Velocity: 80 km/h

  • Time: 5 sec



Substituting the given values in the formula, we get:

Acceleration = (60 - 80)/5

Acceleration = -4 m/s²


Explanation of Calculation


The negative sign in the answer indicates that the bus is decelerating, which means that its speed is decreasing. The magnitude of acceleration is 4 m/s², which means that the bus is decreasing its speed by 4 meters per second every second.


The formula used to calculate acceleration is derived from the basic equation of motion:


Final Velocity = Initial Velocity + Acceleration * Time


By rearranging the equation, we get:


Acceleration = (Final Velocity - Initial Velocity)/Time


This formula is used to calculate acceleration when the initial and final velocities and the time taken are known.
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A bus decreases its speed from 80km/h to 60km/h in 5sec. Find the acce...
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