NEET · Physics · STD 11 - 2. motion in straight line
A person sitting in the ground floor of a building notices through the window, of height \(1.5 \;m ,\) a ball dropped from the roof of the building crosses the window in \(0.1 \;s\). What is the velocity (In \(m/s\)) of the ball when it is at the topmost point of the window \(?\left( g =10\, m / s ^{2}\right)\)
- A 20
- B 15.5
- C 14.5
- D 4.5
Answer & Solution
Correct Answer
(C) 14.5
Step-by-step Solution
Detailed explanation
From equation of motion \(S = ut +\frac{1}{2} at ^{2}\)
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