Answer:
Explanation:
Given
average speed of Phelps
total distance
he swims first 100 m at an average speed if
so time taken is
suppose is the time taken to swim remaining half
average velocity is
so velocity in the second half is
Answer:
The balls velocity is 1 divided by 3
Answer:
The density of the material is defined as the mass of the material to its volume.
ρ = M / V
Explanation:
The density of the material is a scalar quantity.
If the mass and the volume of the material is known the density of the material can be calculated using the formula,
ρ = M / V
The mass of the material can be found using a physical balance.
The volume of a geometrically symmetrical material can be found using the geometrical measurement. For a brick,
V = l x b x h
For non-geometrically shaped material the volume can be found from the displacement method using water.