ICSE Class 9 Answered
A body of mass 3.5kg displaces 1000cm^3 of water when fully immersed inside it. Calculate:(i) What is the volume of body , (ii) the upthrust on the body and (iii) the apparemt weight of body in water.
Asked by Toy123736 | 22 Feb, 2016, 10:01: PM
Expert Answer
Volume of the water displaced = Volume of the body
Here, the body displaces 1000 cm3 of water when fully immersed in it.
(i)Volume of the body = 1000 cm3 = 1000 × 10-6 m3 = 10-3 m3
(ii) Upthrust on the body = Volume of the water displaced × Density of water × g
= 10-3 m3 × 1000 × 10
= 10 N
Here. the weight of the object = 3.5 kg× 10 = 35 N
(iii) Apparent weight = True weight - Upthrust
= 35 N - 10N
Apparent weight = 25 N
Answered by Yashvanti Jain | 23 Feb, 2016, 12:24: PM
