An object hanging from a spring balance weighs 50 N in air. When the o

1.	An object hanging from a spring balance weighs 50 N in air. When the object is loweredinto water, it is found to weigh 40 N. [ 3 point ]a) What is the upthrust on the object?b) What are the weight and mass of waterdisplaced?c) What is the density of the object?
Answer» Answer: Given, Weight of the SPRING =0.1N Spring reading in WATER =0.08N Since Spring reading is reducing, it means Buoyant force =0.02N F B =0.02= VOLUME of fluid DISPLACED (Density of water) ×g=V×10 3 ×10 =>V= 10 4 0.02 m 3 =0.02× 10 4 10 6 cc 3 =2cm 3

An object hanging from a spring balance weighs 50 N in air. When the object is loweredinto water, it is found to weigh 40 N. [ 3 point ]a) What is the upthrust on the object?b) What are the weight and mass of waterdisplaced?c) What is the density of the object?

Answer»

Answer:

Given,

Weight of the SPRING =0.1N

Spring reading in WATER =0.08N

Since Spring reading is reducing, it means Buoyant force =0.02N

=0.02= VOLUME of fluid DISPLACED (Density of water) ×g=V×10

×10

=>V=

0.02

=0.02×

=2cm

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An object hanging from a spring balance weighs 50 N in air. When the object is loweredinto water, it is found to weigh 40 N. [ 3 point ]a) What is the upthrust on the object?b) What are the weight and mass of waterdisplaced?c) What is the density of the object?

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