Mass: the amount of matter an object contains
Weight: mass•acceleration due to gravity(9.8m/s) / the force of gravity acting on an object
Their are two coefficients of friction, static and kinetic, regardless, they have basically the same formula:
u*N = F... aka
coefficient of friction*normal force = force of friction
Hope that helps!
Answer:
Kinetic energy : "It is the energy possessed by body by virtue of its motion" .
Explanation:
The mechanical energy is the energy that a body has due to its motion or position .
It is of two types :
- Potential energy
- Kinetic energy
Potential energy
"It is the energy that a body has due to its position or state" .
It is given by P.E=mgh
Kinetic energy
"It is the energy that a body has due to its motion" .
The formula is : K.E=1/2mv².
For example
- A ball is placed on table .
- At that time it has potential energy .
- Now,lets say that we push it and it drops down .
- On doing this ,the potential energy of ball gets converted into kinetic energy(because it comes in motion ) and as soon as it touches the ground it stops and its kinetic energy gets converted into Potential energy again .
Answer:
c. slow the flow of heat from inside the house to the outside.
Explanation:
Thermal insulation not completely stops the flow of heat but slow down the process of flowing of heat from inside the house to the outside.
