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TEA [102]
3 years ago
15

Calculate the acceleration of a bus full speed changes from 6 miles to 12 miles over a period of three seconds

Physics
1 answer:
Jet001 [13]3 years ago
4 0

Answer:

0.90m/s²

Explanation:

Given parameters:

Initial speed  = 6miles/hr

Final speed  = 12miles/hr

Time taken = 3 seconds

Unknown:

Acceleration = ?

Solution:

Acceleration is the rate of change of velocity with time. It is mathematically given as:

         Acceleration  = \frac{Final speed - Initial speed}{Time}

We need to convert miles/hr to meters/seconds

Initial speed = 6 x \frac{miles }{hour} x \frac{1hr}{3600s}  x \frac{1609.34m}{1mile}

                      = 2.68m/s

Final speed = 12 x \frac{1609.34}{3600}  = 5.37m/s

      Acceleration  = \frac{5.37  - 2.68}{3}   = 0.90m/s²

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