Question

# A block of mass  $$2 { kg }$$  and specific gravity  $$\dfrac { 5 } { 2 }$$  is attached with a spring of force constant  $$k = 100 { N } / { m }$$  and is half dipped in the water. If extension in the spring is  $$1 { cm } .$$  The force exerted by the bottom of the tank on block is (take  $$g = 10 { m } / { s } ^ { 2 }$$ )

A
20N
B
19N
C
15N
D
16N

Solution

## The correct option is C $$15 N$$Hence, option $$C$$ is correct answer.Physics

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