Question

The given acceleration-time graph represents which of the following physical situations ?

• A. A cricket ball moving with a uniform speed is hit with a bat for a very short time interval
• B. A ball is falling freely from the top of a tower
• C. A car moving with constant velocity on a straight road
• D. A football is kicked into the air vertically upwards

Answer 1

Answer: (A)

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.