Question

6. The mass of a block made of a certain material is 13-5 kg and its volume is 15 x 10m (a) Calculate upthrust on the block if it is held fully immersed in water, (b) Will the block float or sink in water when released ? Give reason for your answer. (c) What will be the upthrust on block while floating? Take density of water = 1000 kg m​

Answer 1

The mass of a block made of a certain material is 13-5 kg and its volume is 15 x 10m (a) Calculate upthrust on the block if it is held fully immersed in water, (b) Will the block float or sink in water when released ? Give reason for your answer. (c) What will be the upthrust on block while floating? Take density of water = 1000 kg m

Mass = 135 kg

w = 13.5 kgf

v = 15×10-³ m³

¶ = 1000 kg / m³

Calculate upthrust on the block if it is held fully immersed in water .

Answer : v × e × g

= 15 × 15 × 1000 × g

= 15 kgf

b) The block will float and there will be upthrust

ut = 13.5 kgf

c) Upthrust = 13.5 kgf .

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