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A bus increases its speed from 36km/h to 72km/h in 10 seconds. Its acceleration is.

This question was previously asked in
Bihar STET TGT (Science) Official Paper-I (Held On: 08 Sept, 2023 Shift 1)
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  1. 5m/s2
  2. 2m/s2
  3. 3.6m/s2
  4. 1m/s2

Answer (Detailed Solution Below)

Option 4 : 1m/s2
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Detailed Solution

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Calculation:

Given that, v = 36km/h (36 × (1000/3600)) = 10 m/s

, u = 72km/h (72 × (1000/3600)) = 20 m/s, t = 10 sec

Here, acceleration = Rate of change of velocity/time 

= 20 - 10 / 10

= 10/10 = 1 m/s2  

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