Q4. A body of $m \mathrm {~kg}$ slides from rest along the curve of vertical circle from point $A$ to $B$ in friction less path. The [Figure] velocity of the body at $B$ is: (given, $R = 14 \mathrm {~m} , g = 10 \mathrm {~m} / \mathrm { s } ^ { 2 }$ and $\sqrt { 2 } = 1.4$ ) (1) $16.7 \mathrm {~m} / \mathrm { s }$ (2) $19.8 \mathrm {~m} / \mathrm { s }$ (3) $10.6 \mathrm {~m} / \mathrm { s }$ (4) $21.9 \mathrm {~m} / \mathrm { s }$
Q4. A body of $m \mathrm {~kg}$ slides from rest along the curve of vertical circle from point $A$ to $B$ in friction less path. The\\
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velocity of the body at $B$ is:\\
(given, $R = 14 \mathrm {~m} , g = 10 \mathrm {~m} / \mathrm { s } ^ { 2 }$ and $\sqrt { 2 } = 1.4$ )\\
(1) $16.7 \mathrm {~m} / \mathrm { s }$\\
(2) $19.8 \mathrm {~m} / \mathrm { s }$\\
(3) $10.6 \mathrm {~m} / \mathrm { s }$\\
(4) $21.9 \mathrm {~m} / \mathrm { s }$