Answer:
Density of the swimmer = 
.
Explanation:
Assuming,
= density of the swimmer.
= density of the water.
= mass of the swimmer.
= mass of the water displaced by the swimmer.
= volume of the displaced water.
= volume of the swimmer.
Given:
The density of an object is defined as the mass of the object per unit volume.
Therefore,
Since only 95% of the body of the swimmer is inside the water, therefore,
According to Archimedes' principle,
Using (1),
Answer:
<h2>64.4 N</h2>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question
mass = 9.2 kg
acceleration = 7 m/s²
We have
force = 9.2 × 7 = 64.4
We have the final answer as
<h3>64.4 N</h3>
Hope this helps you
