Question

answer the above question​

Answer 1

Answer:

Refer to the attachment above

Explanation:

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Answer 2

Answer:

Acceleration a = (V - U) / t

Given: Initial velocity (U) = 80 km/hr = 80 × 5/18 = 400/18 = 22.2m/sec

           Final velocity (V) = 60 km/hr = 60 × 5/18 = 300/18 = 16.6m/sec

Acceleration a = (V - U) / t

                       = (16.6 - 22.2)/5

                       = -5.6/5

                       = -1.12 m/s2

Negative sign indicates that the velocity is decreasing.

Therefore, the acceleration of the bus that decreases its speed from 80 kilometers per hour to 60 km per hour in 5 seconds is -1.12m/s2

Explanation:

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