Question

A ball is released from a height of $1$ $m$ on a fixed smooth hemispherical surface as shown. Find its velocity when it is at a height of $0.5$ $m$ from ground. (take $g$ = $10\;m / s^2$)

• A. $20 \;m/s$
• B. $10 \;m/s$
• C. $\sqrt{10}\; m/s$
• D. $5 \;m/s$

Answer 1

Answer: (C)

$\sqrt{10}\; m/s$

Answer 2

The Correct Option is (C): $\sqrt{10}\; m/s$