An Object Requires a Force of 30 N to Hold $850 \mathrm {~kg} / \mathrm { m } ^ { 3 }$

question 5

Multiple Choice

An object requires a force of 30 N to hold it under water. The object weighs 90 N in air. Its density is nearest:

• A) \(850 \mathrm {~kg} / \mathrm { m } ^ { 3 }\)
• B) \(800 \mathrm {~kg} / \mathrm { m } ^ { 3 }\)
• C) \(750 \mathrm {~kg} / \mathrm { m } ^ { 3 }\)
• D) \(700 \mathrm {~kg} / \mathrm { m } ^ { 3 }\)