A smooth spherical ball of radius $$1cm$$ and density $$4$$×$$103$$ kgm−$$3$$ is dropped gently in a large container containing viscous liquid of density $$2$$×$$103$$ kgm−$$3$$ , and η$$=0.1$$ N−sm−$$2$$ . The distance moved by the ball in t $$=$$ $$0.1s$$ after it attains terminal velocity is (g=10ms$$−$$2)

Question

A smooth spherical ball of radius $$1cm$$ and density $$4$$×$$103$$ kgm−$$3$$  is dropped gently in a large container containing viscous liquid of density $$2$$×$$103$$ kgm−$$3$$ , and η$$=0.1$$ N−sm−$$2$$ . The distance moved by the ball in t $$=$$ $$0.1s$$ after it attains terminal velocity is (g=10ms$$−$$2)

Infinity Learn · Accepted Answer

Once the body acquire the terminal velocity it will have uniform motion.$$vt=29r2$$η[$$($$ρ−σ$$)g$$] , $$downvt=409$$ $$m/s$$  downDistance travelled $$=vt=409$$×$$0.1=49m$$  down

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A smooth spherical ball of radius 1cm and density 4×103 kgm−3 is dropped gently in a large container containing viscous liquid of density 2×103 kgm−3 , and η=0.1 N−sm−2 . The distance moved by the ball in t = 0.1s after it attains terminal velocity is (g=10ms−2)

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