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A simple pendulum with a bob of mass m s...

A simple pendulum with a bob of mass m swings with an angular amplitude of `40^@`. When its angular displacement is `20^@`, the tension in the string is greater than `mg cos 20^@`

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Trun
When the angular displacement is `20^(@)` the mass is not at extrem end.
`T - mg cos 20^(@) = (m upsilon^(2))/(r )`
`implies T = mg cos 20^(@) + (m v^(2))/(r ) gt mg cos 20^(@)`
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