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A pendulum bob swings along a circular p...

A pendulum bob swings along a circular path on a smooth inclined plane as shown in figure, where `m=3kg`, `l=0.75m`, `theta=37^@`. At the lowest point of the circle the tension in the string is `T=274N`. Take `g=10ms^-2`.

The speed of the bob at the lowest point is

A

`9.2ms^-1`

B

`9ms^-1`

C

`6.5ms^-1`

D

`8ms^-1`

Text Solution

Verified by Experts

The correct Answer is:
D
At the lowest point: `T_L=mg sin 37^@+(mv^2)/(l)`
`implies274=3xx10xx3/5+(3V_L^2)/(0.75)impliesv_L=8ms^-1`
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