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CLASS II

Como tu ta pel?

(What is your name in French)

Since loudness (precisely intensity) is directly proportional to the surface area of the vibrating body,

Therefore bells of temples are larger to produce loud sounds.

8.49 m /s(rounded off)

Procedure:

Find its potential energy at the top.

Find its kinetic energy at the base.

Keep mass = m in both cases.

Equate the two equations.

You will get v^2 = 72.

Solve to obtain 8.485... As the answer.