Yea I would love to help u
Answer:because liquids does not stick togather so it spreads out and solids don't
Explanation:
Kinetic Energy = 1/2 * mass * velocity^2
Mass = 0.1 kg
Velocity = 20 m/s
Kinetic energy = 1/2 * 0.1 * 20^2
Kinetic energy = 1/2 * 0.1 * 400
Kinetic energy = 20 J
To solve this problem we will apply the concepts related to the balance of forces. Said balance will be given between buoyancy force and weight, both described as derived from Newton's second law, are given as
Buoyancy force

Here,
V = Volume
=Density of air
g = Acceleration due to gravity
Weight

m = mass
g = Gravity
Our values are given as,




Then,

Replacing,

Now net force is ,

Mass of the sphere is

Now acceleration of the sphere is



Therefore the acceleration of the sphere as it falls through water is 
Difference between solid friction and viscosity is as follows: Viscosity is proportional to the surface area whereas solid friction is independent of area of solid surfaces in contact. Viscous force on the body depends upon its velocity in the viscous media. But, friction does not depend on the velocity of the body.