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PHYSICS

JAMB 2017 - Question 6

Physics 2017 JAMB Past Questions - Question 6: Calculate the upthrust on an object of volume 50cm which is immersed in liquid of density 10 kgm (g=10ms)

Choose the correct answers from the options given.

Calculate the upthrust on an object of volume 50cm which is immersed in liquid of density 10 kgm (g=10ms)

A: 0.8N

B: 2.5N

C: 0.5N

D: 1.0N

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Correct Answer

Explanation

Density, p = mass (m) volume (v)Mass, m = pvVolume of liquid displace =volume of the solid = 50cm3Up thrust = weight of fluid displaced. Upthrust = mg = Pv g= 103x 50 x 10-6 x 10 5 x 10-1 N = 0.5N