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A wooden block is taken to the bottom of a deep, calm lake of water and then released. It rises up with a ___________

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A wooden block is taken to the bottom of a deep, calm lake of water and then released. It rises up with a ___________

(a) Constant acceleration

(b) Decreasing acceleration

(c) Constant velocity

(d) Decreasing velocity

The question was posed to me in an online interview.

I want to ask this question from Buoyancy topic in portion Mechanical Properties of Solids of Engineering Physics I

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Best answer
Right option is (a) Constant acceleration

Easiest explanation: The wooden block rises up with acceleration,

a=(Upthrust-weight of block)/(Mass of block).

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