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Q. The given acceleration-time graph represents which of the following physical situations ?Physics Question Image

Motion in a Straight Line

Solution:

The $a$-$t$ graph shows that initially the body moves with uniform velocity. Its acceleration increases for a short time and then falls to zero and there after the body moves with a constant velocity. Such a physical situation arises when a cricket ball moving with a uniform speed is hit with a bat for a very short time interval.