Lakhmir Singh Solutions Class 9 Physics Solutions for Exercise in Chapter 1 - Motion
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A bus moving along a straight line at 20 m/s undergoes an acceleration of 4 \mathrm{m/s^2}. After 2 seconds, its speed will be:
a) 8 m/s
b) 12 m/s
c) 16 m/s
d) 28 m/s
Answer:
The correct answer is d) 28 m/s
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